diff --git a/tr/css/css-transitions-2.json b/tr/css/css-transitions-2.json
new file mode 100644
index 000000000000..cf910027b486
--- /dev/null
+++ b/tr/css/css-transitions-2.json
@@ -0,0 +1,43 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "properties": [
+    {
+      "name": "transition-behavior",
+      "value": "<transition-behavior-value>#",
+      "initial": "normal",
+      "appliesTo": "all elements",
+      "inherited": "no",
+      "percentages": "N/A",
+      "computedValue": "as specified",
+      "canonicalOrder": "per grammar",
+      "animationType": "not animatable",
+      "styleDeclaration": [
+        "transition-behavior",
+        "transitionBehavior"
+      ]
+    }
+  ],
+  "atrules": [
+    {
+      "name": "@starting-style",
+      "prose": "The @starting-style rule is a grouping rule. The style rules inside it are used to establish styles to transition from, if the previous style change event did not establish a before-change style for the element whose styles are being computed.",
+      "descriptors": []
+    }
+  ],
+  "selectors": [],
+  "values": [
+    {
+      "name": "<transition-behavior-value>",
+      "value": "normal | allow-discrete",
+      "type": "type"
+    },
+    {
+      "name": "<single-transition>",
+      "value": "[ none | <single-transition-property> ] || <time> || <easing-function> || <time> || <transition-behavior-value>",
+      "type": "type"
+    }
+  ]
+}
diff --git a/tr/dfns/css-transitions-2.json b/tr/dfns/css-transitions-2.json
new file mode 100644
index 000000000000..0bc5d2fdde58
--- /dev/null
+++ b/tr/dfns/css-transitions-2.json
@@ -0,0 +1,326 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "dfns": [
+    {
+      "id": "expanded-transition-property-name",
+      "href": "https://www.w3.org/TR/css-transitions-2/#expanded-transition-property-name",
+      "linkingText": [
+        "expanded transition property name"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "transition-property-property",
+        "href": "https://www.w3.org/TR/css-transitions-2/#transition-property-property",
+        "title": "The transition-property Property",
+        "number": "2.1"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "transitionable",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transitionable",
+      "linkingText": [
+        "transitionable"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "propdef-transition-behavior",
+      "href": "https://www.w3.org/TR/css-transitions-2/#propdef-transition-behavior",
+      "linkingText": [
+        "transition-behavior"
+      ],
+      "localLinkingText": [],
+      "type": "property",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "transition-behavior-property",
+        "href": "https://www.w3.org/TR/css-transitions-2/#transition-behavior-property",
+        "title": "The transition-behavior Property",
+        "number": "2.5"
+      },
+      "definedIn": "table"
+    },
+    {
+      "id": "typedef-transition-behavior-value",
+      "href": "https://www.w3.org/TR/css-transitions-2/#typedef-transition-behavior-value",
+      "linkingText": [
+        "<transition-behavior-value>"
+      ],
+      "localLinkingText": [],
+      "type": "type",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "transition-behavior-property",
+        "href": "https://www.w3.org/TR/css-transitions-2/#transition-behavior-property",
+        "title": "The transition-behavior Property",
+        "number": "2.5"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "single-transition",
+      "href": "https://www.w3.org/TR/css-transitions-2/#single-transition",
+      "linkingText": [
+        "<single-transition>"
+      ],
+      "localLinkingText": [],
+      "type": "type",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "transition-shorthand-property",
+        "href": "https://www.w3.org/TR/css-transitions-2/#transition-shorthand-property",
+        "title": "The transition Shorthand Property",
+        "number": "2.6"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "owning-element",
+      "href": "https://www.w3.org/TR/css-transitions-2/#owning-element",
+      "linkingText": [
+        "owning element"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "starting",
+        "href": "https://www.w3.org/TR/css-transitions-2/#starting",
+        "title": "Starting of transitions",
+        "number": "3"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "current-transition-generation",
+      "href": "https://www.w3.org/TR/css-transitions-2/#current-transition-generation",
+      "linkingText": [
+        "current transition generation"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "current-transition-generation-section",
+        "href": "https://www.w3.org/TR/css-transitions-2/#current-transition-generation-section",
+        "title": "The current transition generation",
+        "number": "3.2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "transition-generation",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-generation",
+      "linkingText": [
+        "transition generation"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "at-ruledef-starting-style",
+      "href": "https://www.w3.org/TR/css-transitions-2/#at-ruledef-starting-style",
+      "linkingText": [
+        "@starting-style"
+      ],
+      "localLinkingText": [],
+      "type": "at-rule",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "defining-before-change-style",
+        "href": "https://www.w3.org/TR/css-transitions-2/#defining-before-change-style",
+        "title": "Defining before-change style: the @starting-style rule",
+        "number": "3.3"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "starting-style",
+      "href": "https://www.w3.org/TR/css-transitions-2/#starting-style",
+      "linkingText": [
+        "starting style"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "cssstartingstylerule",
+      "href": "https://www.w3.org/TR/css-transitions-2/#cssstartingstylerule",
+      "linkingText": [
+        "CSSStartingStyleRule"
+      ],
+      "localLinkingText": [],
+      "type": "interface",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "the-cssstartingstylerule-interface",
+        "href": "https://www.w3.org/TR/css-transitions-2/#the-cssstartingstylerule-interface",
+        "title": "The CSSStartingStyleRule interface",
+        "number": "3.3.1"
+      },
+      "definedIn": "pre"
+    },
+    {
+      "id": "transition-phase",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-phase",
+      "linkingText": [
+        "transition phase"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "event-dispatch",
+        "href": "https://www.w3.org/TR/css-transitions-2/#event-dispatch",
+        "title": "Event dispatch",
+        "number": "5.1"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "interval-start",
+      "href": "https://www.w3.org/TR/css-transitions-2/#interval-start",
+      "linkingText": [
+        "interval start"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "interval-end",
+      "href": "https://www.w3.org/TR/css-transitions-2/#interval-end",
+      "linkingText": [
+        "interval end"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "elapsed-time",
+      "href": "https://www.w3.org/TR/css-transitions-2/#elapsed-time",
+      "linkingText": [
+        "Elapsed time"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "table"
+    },
+    {
+      "id": "csstransition",
+      "href": "https://www.w3.org/TR/css-transitions-2/#csstransition",
+      "linkingText": [
+        "CSSTransition"
+      ],
+      "localLinkingText": [],
+      "type": "interface",
+      "for": [],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "the-CSSTransition-interface",
+        "href": "https://www.w3.org/TR/css-transitions-2/#the-CSSTransition-interface",
+        "title": "The CSSTransition interface",
+        "number": "6.1"
+      },
+      "definedIn": "pre"
+    },
+    {
+      "id": "dom-csstransition-transitionproperty",
+      "href": "https://www.w3.org/TR/css-transitions-2/#dom-csstransition-transitionproperty",
+      "linkingText": [
+        "transitionProperty"
+      ],
+      "localLinkingText": [],
+      "type": "attribute",
+      "for": [
+        "CSSTransition"
+      ],
+      "access": "public",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/css-transitions-2/#title",
+        "title": "CSS Transitions Level 2"
+      },
+      "definedIn": "dt"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/dfns/intersection-observer.json b/tr/dfns/intersection-observer.json
index 1b9aace231a5..577272fb7bfb 100644
--- a/tr/dfns/intersection-observer.json
+++ b/tr/dfns/intersection-observer.json
@@ -570,6 +570,24 @@
       },
       "definedIn": "prose"
     },
+    {
+      "id": "apply-scroll-margin-to-a-scrollport",
+      "href": "https://www.w3.org/TR/intersection-observer/#apply-scroll-margin-to-a-scrollport",
+      "linkingText": [
+        "apply scroll margin to a scrollport"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "title",
+        "href": "https://www.w3.org/TR/intersection-observer/#title",
+        "title": "Intersection Observer"
+      },
+      "definedIn": "dt"
+    },
     {
       "id": "parse-a-margin",
       "href": "https://www.w3.org/TR/intersection-observer/#parse-a-margin",
diff --git a/tr/dfns/mse-byte-stream-format-isobmff.json b/tr/dfns/mse-byte-stream-format-isobmff.json
new file mode 100644
index 000000000000..a8ad94263fa1
--- /dev/null
+++ b/tr/dfns/mse-byte-stream-format-isobmff.json
@@ -0,0 +1,27 @@
+{
+  "spec": {
+    "title": "ISO BMFF Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+  },
+  "dfns": [
+    {
+      "id": "movie-fragment-relative-addressing",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#movie-fragment-relative-addressing",
+      "linkingText": [
+        "movie-fragment relative addressing"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "iso-media-segments",
+        "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-media-segments",
+        "title": "Media Segments",
+        "number": "4"
+      },
+      "definedIn": "prose"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/dfns/mse-byte-stream-format-mp2t.json b/tr/dfns/mse-byte-stream-format-mp2t.json
new file mode 100644
index 000000000000..97a277293bd2
--- /dev/null
+++ b/tr/dfns/mse-byte-stream-format-mp2t.json
@@ -0,0 +1,27 @@
+{
+  "spec": {
+    "title": "MPEG-2 TS Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+  },
+  "dfns": [
+    {
+      "id": "mpeg2ts-timestampOffset",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-timestampOffset",
+      "linkingText": [
+        "MPEG2TS_timestampOffset"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "mpeg2ts-discontinuities",
+        "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-discontinuities",
+        "title": "Timestamp Rollover & Discontinuities",
+        "number": "7"
+      },
+      "definedIn": "prose"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/dfns/mse-byte-stream-format-mpeg-audio.json b/tr/dfns/mse-byte-stream-format-mpeg-audio.json
new file mode 100644
index 000000000000..96560df425da
--- /dev/null
+++ b/tr/dfns/mse-byte-stream-format-mpeg-audio.json
@@ -0,0 +1,46 @@
+{
+  "spec": {
+    "title": "MPEG Audio Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+  },
+  "dfns": [
+    {
+      "id": "mpeg-audio-frame",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-audio-frame",
+      "linkingText": [
+        "MPEG Audio Frame"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "mpeg-audio-frames",
+        "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-audio-frames",
+        "title": "MPEG Audio Frames",
+        "number": "3"
+      },
+      "definedIn": "prose"
+    },
+    {
+      "id": "icecast-header",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#icecast-header",
+      "linkingText": [
+        "Icecast header"
+      ],
+      "localLinkingText": [],
+      "type": "dfn",
+      "for": [],
+      "access": "private",
+      "informative": false,
+      "heading": {
+        "id": "icecast",
+        "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#icecast",
+        "title": "Icecast headers",
+        "number": "4.1"
+      },
+      "definedIn": "prose"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/css-transitions-2.json b/tr/headings/css-transitions-2.json
new file mode 100644
index 000000000000..4c47d2bf9b76
--- /dev/null
+++ b/tr/headings/css-transitions-2.json
@@ -0,0 +1,309 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "headings": [
+    {
+      "id": "title",
+      "href": "https://www.w3.org/TR/css-transitions-2/#title",
+      "level": 1,
+      "title": "CSS Transitions Level 2"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/css-transitions-2/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/css-transitions-2/#sotd",
+      "level": 2,
+      "title": "Status of this document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/css-transitions-2/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "delta",
+      "href": "https://www.w3.org/TR/css-transitions-2/#delta",
+      "level": 2,
+      "title": "Delta specification",
+      "number": "1"
+    },
+    {
+      "id": "transitions",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transitions",
+      "level": 2,
+      "title": "Transitions",
+      "number": "2"
+    },
+    {
+      "id": "transition-property-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-property-property",
+      "level": 3,
+      "title": "The transition-property Property",
+      "number": "2.1"
+    },
+    {
+      "id": "transition-duration-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-duration-property",
+      "level": 3,
+      "title": "The transition-duration Property",
+      "number": "2.2"
+    },
+    {
+      "id": "transition-timing-function-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-timing-function-property",
+      "level": 3,
+      "title": "The transition-timing-function Property",
+      "number": "2.3"
+    },
+    {
+      "id": "transition-delay-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-delay-property",
+      "level": 3,
+      "title": "The transition-delay Property",
+      "number": "2.4"
+    },
+    {
+      "id": "transition-behavior-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-behavior-property",
+      "level": 3,
+      "title": "The transition-behavior Property",
+      "number": "2.5"
+    },
+    {
+      "id": "transition-shorthand-property",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-shorthand-property",
+      "level": 3,
+      "title": "The transition Shorthand Property",
+      "number": "2.6"
+    },
+    {
+      "id": "starting",
+      "href": "https://www.w3.org/TR/css-transitions-2/#starting",
+      "level": 2,
+      "title": "Starting of transitions",
+      "number": "3"
+    },
+    {
+      "id": "reversing",
+      "href": "https://www.w3.org/TR/css-transitions-2/#reversing",
+      "level": 3,
+      "title": "Faster reversing of interrupted transitions",
+      "number": "3.1"
+    },
+    {
+      "id": "current-transition-generation-section",
+      "href": "https://www.w3.org/TR/css-transitions-2/#current-transition-generation-section",
+      "level": 3,
+      "title": "The current transition generation",
+      "number": "3.2"
+    },
+    {
+      "id": "defining-before-change-style",
+      "href": "https://www.w3.org/TR/css-transitions-2/#defining-before-change-style",
+      "level": 3,
+      "title": "Defining before-change style: the @starting-style rule",
+      "number": "3.3"
+    },
+    {
+      "id": "the-cssstartingstylerule-interface",
+      "href": "https://www.w3.org/TR/css-transitions-2/#the-cssstartingstylerule-interface",
+      "level": 4,
+      "title": "The CSSStartingStyleRule interface",
+      "number": "3.3.1"
+    },
+    {
+      "id": "application",
+      "href": "https://www.w3.org/TR/css-transitions-2/#application",
+      "level": 2,
+      "title": "Application of transitions",
+      "number": "4"
+    },
+    {
+      "id": "animation-composite-order",
+      "href": "https://www.w3.org/TR/css-transitions-2/#animation-composite-order",
+      "level": 3,
+      "title": "Animation composite order",
+      "number": "4.1"
+    },
+    {
+      "id": "cascade-level",
+      "href": "https://www.w3.org/TR/css-transitions-2/#cascade-level",
+      "level": 3,
+      "title": "Animation cascade level",
+      "number": "4.2"
+    },
+    {
+      "id": "transition-events",
+      "href": "https://www.w3.org/TR/css-transitions-2/#transition-events",
+      "level": 2,
+      "title": "Transition Events",
+      "number": "5"
+    },
+    {
+      "id": "event-dispatch",
+      "href": "https://www.w3.org/TR/css-transitions-2/#event-dispatch",
+      "level": 3,
+      "title": "Event dispatch",
+      "number": "5.1"
+    },
+    {
+      "id": "interface-dom",
+      "href": "https://www.w3.org/TR/css-transitions-2/#interface-dom",
+      "level": 2,
+      "title": "DOM Interfaces",
+      "number": "6"
+    },
+    {
+      "id": "the-CSSTransition-interface",
+      "href": "https://www.w3.org/TR/css-transitions-2/#the-CSSTransition-interface",
+      "level": 3,
+      "title": "The CSSTransition interface",
+      "number": "6.1"
+    },
+    {
+      "id": "requirements-on-pending-style-changes",
+      "href": "https://www.w3.org/TR/css-transitions-2/#requirements-on-pending-style-changes",
+      "level": 3,
+      "title": "Requirements on pending style changes",
+      "number": "6.2"
+    },
+    {
+      "id": "privacy",
+      "href": "https://www.w3.org/TR/css-transitions-2/#privacy",
+      "level": 2,
+      "title": "Privacy Considerations",
+      "number": "7"
+    },
+    {
+      "id": "security",
+      "href": "https://www.w3.org/TR/css-transitions-2/#security",
+      "level": 2,
+      "title": "Security Considerations",
+      "number": "8"
+    },
+    {
+      "id": "changes",
+      "href": "https://www.w3.org/TR/css-transitions-2/#changes",
+      "level": 2,
+      "title": "Changes",
+      "number": "9"
+    },
+    {
+      "id": "changes-fpwd",
+      "href": "https://www.w3.org/TR/css-transitions-2/#changes-fpwd",
+      "level": 3,
+      "title": "Changes since Level 1, in First Public Working Draft",
+      "number": "9.1"
+    },
+    {
+      "id": "issues-common",
+      "href": "https://www.w3.org/TR/css-transitions-2/#issues-common",
+      "level": 2,
+      "title": "10. Issues commonly raised as issues with previous levels"
+    },
+    {
+      "id": "issues-spec",
+      "href": "https://www.w3.org/TR/css-transitions-2/#issues-spec",
+      "level": 2,
+      "title": "11. Issues deferred from previous levels of the spec"
+    },
+    {
+      "id": "w3c-conformance",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-conformance",
+      "level": 2,
+      "title": "Conformance"
+    },
+    {
+      "id": "w3c-conventions",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-conventions",
+      "level": 3,
+      "title": "Document conventions"
+    },
+    {
+      "id": "w3c-conformance-classes",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-conformance-classes",
+      "level": 3,
+      "title": "Conformance classes"
+    },
+    {
+      "id": "w3c-partial",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-partial",
+      "level": 3,
+      "title": "Partial implementations"
+    },
+    {
+      "id": "w3c-conform-future-proofing",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-conform-future-proofing",
+      "level": 4,
+      "title": "Implementations of Unstable and Proprietary Features"
+    },
+    {
+      "id": "w3c-testing",
+      "href": "https://www.w3.org/TR/css-transitions-2/#w3c-testing",
+      "level": 3,
+      "title": "Non-experimental implementations"
+    },
+    {
+      "id": "index",
+      "href": "https://www.w3.org/TR/css-transitions-2/#index",
+      "level": 2,
+      "title": "Index"
+    },
+    {
+      "id": "index-defined-here",
+      "href": "https://www.w3.org/TR/css-transitions-2/#index-defined-here",
+      "level": 3,
+      "title": "Terms defined by this specification"
+    },
+    {
+      "id": "index-defined-elsewhere",
+      "href": "https://www.w3.org/TR/css-transitions-2/#index-defined-elsewhere",
+      "level": 3,
+      "title": "Terms defined by reference"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/css-transitions-2/#references",
+      "level": 2,
+      "title": "References"
+    },
+    {
+      "id": "normative",
+      "href": "https://www.w3.org/TR/css-transitions-2/#normative",
+      "level": 3,
+      "title": "Normative References"
+    },
+    {
+      "id": "informative",
+      "href": "https://www.w3.org/TR/css-transitions-2/#informative",
+      "level": 3,
+      "title": "Informative References"
+    },
+    {
+      "id": "property-index",
+      "href": "https://www.w3.org/TR/css-transitions-2/#property-index",
+      "level": 2,
+      "title": "Property Index"
+    },
+    {
+      "id": "idl-index",
+      "href": "https://www.w3.org/TR/css-transitions-2/#idl-index",
+      "level": 2,
+      "title": "IDL Index"
+    },
+    {
+      "id": "issues-index",
+      "href": "https://www.w3.org/TR/css-transitions-2/#issues-index",
+      "level": 2,
+      "title": "Issues Index"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/mse-byte-stream-format-isobmff.json b/tr/headings/mse-byte-stream-format-isobmff.json
new file mode 100644
index 000000000000..d3c1378b5839
--- /dev/null
+++ b/tr/headings/mse-byte-stream-format-isobmff.json
@@ -0,0 +1,108 @@
+{
+  "spec": {
+    "title": "ISO BMFF Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+  },
+  "headings": [
+    {
+      "id": "respecDocument",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#respecDocument",
+      "level": 1,
+      "title": "ISO BMFF Byte Stream Format"
+    },
+    {
+      "id": "w3c-working-group-note-04-october-2016",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#w3c-working-group-note-04-october-2016",
+      "level": 2,
+      "title": "W3C Working Group Note 04 October 2016"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#sotd",
+      "level": 2,
+      "title": "Status of This Document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "introduction",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#introduction",
+      "level": 2,
+      "title": "Introduction",
+      "number": "1"
+    },
+    {
+      "id": "mime-parameters",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#mime-parameters",
+      "level": 2,
+      "title": "MIME-type parameters",
+      "number": "2"
+    },
+    {
+      "id": "iso-init-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-init-segments",
+      "level": 2,
+      "title": "Initialization Segments",
+      "number": "3"
+    },
+    {
+      "id": "iso-media-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-media-segments",
+      "level": 2,
+      "title": "Media Segments",
+      "number": "4"
+    },
+    {
+      "id": "iso-random-access-points",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-random-access-points",
+      "level": 2,
+      "title": "Random Access Points",
+      "number": "5"
+    },
+    {
+      "id": "conformance",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#conformance",
+      "level": 2,
+      "title": "Conformance",
+      "number": "6"
+    },
+    {
+      "id": "acknowledgements",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#acknowledgements",
+      "level": 2,
+      "title": "Acknowledgments",
+      "number": "7"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#references",
+      "level": 2,
+      "title": "References",
+      "number": "A"
+    },
+    {
+      "id": "normative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#normative-references",
+      "level": 3,
+      "title": "Normative references",
+      "number": "A.1"
+    },
+    {
+      "id": "informative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#informative-references",
+      "level": 3,
+      "title": "Informative references",
+      "number": "A.2"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/mse-byte-stream-format-mp2t.json b/tr/headings/mse-byte-stream-format-mp2t.json
new file mode 100644
index 000000000000..e0eaf1fa6149
--- /dev/null
+++ b/tr/headings/mse-byte-stream-format-mp2t.json
@@ -0,0 +1,122 @@
+{
+  "spec": {
+    "title": "MPEG-2 TS Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+  },
+  "headings": [
+    {
+      "id": "respecDocument",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#respecDocument",
+      "level": 1,
+      "title": "MPEG-2 TS Byte Stream Format"
+    },
+    {
+      "id": "w3c-working-group-note-04-october-2016",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#w3c-working-group-note-04-october-2016",
+      "level": 2,
+      "title": "W3C Working Group Note 04 October 2016"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#sotd",
+      "level": 2,
+      "title": "Status of This Document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "introduction",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#introduction",
+      "level": 2,
+      "title": "Introduction",
+      "number": "1"
+    },
+    {
+      "id": "mime-parameters",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mime-parameters",
+      "level": 2,
+      "title": "MIME-type info",
+      "number": "2"
+    },
+    {
+      "id": "mpeg2ts-general",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-general",
+      "level": 2,
+      "title": "General Transport Stream Requirements",
+      "number": "3"
+    },
+    {
+      "id": "mpeg2ts-init-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-init-segments",
+      "level": 2,
+      "title": "Initialization Segments",
+      "number": "4"
+    },
+    {
+      "id": "mpeg2ts-media-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-media-segments",
+      "level": 2,
+      "title": "Media Segments",
+      "number": "5"
+    },
+    {
+      "id": "mpeg2ts-random-access-points",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-random-access-points",
+      "level": 2,
+      "title": "Random Access Points",
+      "number": "6"
+    },
+    {
+      "id": "mpeg2ts-discontinuities",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-discontinuities",
+      "level": 2,
+      "title": "Timestamp Rollover & Discontinuities",
+      "number": "7"
+    },
+    {
+      "id": "conformance",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#conformance",
+      "level": 2,
+      "title": "Conformance",
+      "number": "8"
+    },
+    {
+      "id": "acknowledgements",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#acknowledgements",
+      "level": 2,
+      "title": "Acknowledgments",
+      "number": "9"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#references",
+      "level": 2,
+      "title": "References",
+      "number": "A"
+    },
+    {
+      "id": "normative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#normative-references",
+      "level": 3,
+      "title": "Normative references",
+      "number": "A.1"
+    },
+    {
+      "id": "informative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#informative-references",
+      "level": 3,
+      "title": "Informative references",
+      "number": "A.2"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/mse-byte-stream-format-mpeg-audio.json b/tr/headings/mse-byte-stream-format-mpeg-audio.json
new file mode 100644
index 000000000000..ac536a34101f
--- /dev/null
+++ b/tr/headings/mse-byte-stream-format-mpeg-audio.json
@@ -0,0 +1,101 @@
+{
+  "spec": {
+    "title": "MPEG Audio Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+  },
+  "headings": [
+    {
+      "id": "respecDocument",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#respecDocument",
+      "level": 1,
+      "title": "MPEG Audio Byte Stream Format"
+    },
+    {
+      "id": "w3c-working-group-note-04-october-2016",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#w3c-working-group-note-04-october-2016",
+      "level": 2,
+      "title": "W3C Working Group Note 04 October 2016"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#sotd",
+      "level": 2,
+      "title": "Status of This Document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "introduction",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#introduction",
+      "level": 2,
+      "title": "Introduction",
+      "number": "1"
+    },
+    {
+      "id": "mime-types",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mime-types",
+      "level": 2,
+      "title": "MIME-types",
+      "number": "2"
+    },
+    {
+      "id": "mpeg-audio-frames",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-audio-frames",
+      "level": 2,
+      "title": "MPEG Audio Frames",
+      "number": "3"
+    },
+    {
+      "id": "mpeg-metadata",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-metadata",
+      "level": 2,
+      "title": "Metadata Frames",
+      "number": "4"
+    },
+    {
+      "id": "icecast",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#icecast",
+      "level": 3,
+      "title": "Icecast headers",
+      "number": "4.1"
+    },
+    {
+      "id": "mpeg-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-segments",
+      "level": 2,
+      "title": "Segment Definitions",
+      "number": "5"
+    },
+    {
+      "id": "conformance",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#conformance",
+      "level": 2,
+      "title": "Conformance",
+      "number": "6"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#references",
+      "level": 2,
+      "title": "References",
+      "number": "A"
+    },
+    {
+      "id": "normative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#normative-references",
+      "level": 3,
+      "title": "Normative references",
+      "number": "A.1"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/mse-byte-stream-format-registry.json b/tr/headings/mse-byte-stream-format-registry.json
new file mode 100644
index 000000000000..f3dad4649d3c
--- /dev/null
+++ b/tr/headings/mse-byte-stream-format-registry.json
@@ -0,0 +1,87 @@
+{
+  "spec": {
+    "title": "Media Source Extensions Byte Stream Format Registry",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-registry/"
+  },
+  "headings": [
+    {
+      "id": "respecDocument",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#respecDocument",
+      "level": 1,
+      "title": "Media Source Extensions Byte Stream Format Registry"
+    },
+    {
+      "id": "w3c-working-group-note-04-october-2016",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#w3c-working-group-note-04-october-2016",
+      "level": 2,
+      "title": "W3C Working Group Note 04 October 2016"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#sotd",
+      "level": 2,
+      "title": "Status of This Document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "purpose",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#purpose",
+      "level": 2,
+      "title": "Purpose",
+      "number": "1"
+    },
+    {
+      "id": "organization",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#organization",
+      "level": 2,
+      "title": "Organization",
+      "number": "2"
+    },
+    {
+      "id": "entry-requirements",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#entry-requirements",
+      "level": 2,
+      "title": "Registration Entry Requirements",
+      "number": "3"
+    },
+    {
+      "id": "registry",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#registry",
+      "level": 2,
+      "title": "Registry",
+      "number": "4"
+    },
+    {
+      "id": "conformance",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#conformance",
+      "level": 2,
+      "title": "Conformance",
+      "number": "5"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#references",
+      "level": 2,
+      "title": "References",
+      "number": "A"
+    },
+    {
+      "id": "normative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-registry/#normative-references",
+      "level": 3,
+      "title": "Normative references",
+      "number": "A.1"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/headings/mse-byte-stream-format-webm.json b/tr/headings/mse-byte-stream-format-webm.json
new file mode 100644
index 000000000000..ed8a21dcba32
--- /dev/null
+++ b/tr/headings/mse-byte-stream-format-webm.json
@@ -0,0 +1,108 @@
+{
+  "spec": {
+    "title": "WebM Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-webm/"
+  },
+  "headings": [
+    {
+      "id": "respecDocument",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#respecDocument",
+      "level": 1,
+      "title": "WebM Byte Stream Format"
+    },
+    {
+      "id": "w3c-working-group-note-04-october-2016",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#w3c-working-group-note-04-october-2016",
+      "level": 2,
+      "title": "W3C Working Group Note 04 October 2016"
+    },
+    {
+      "id": "abstract",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#abstract",
+      "level": 2,
+      "title": "Abstract"
+    },
+    {
+      "id": "sotd",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#sotd",
+      "level": 2,
+      "title": "Status of This Document"
+    },
+    {
+      "id": "toc",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#toc",
+      "level": 2,
+      "title": "Table of Contents"
+    },
+    {
+      "id": "introduction",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#introduction",
+      "level": 2,
+      "title": "Introduction",
+      "number": "1"
+    },
+    {
+      "id": "webm-mime-parameters",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-mime-parameters",
+      "level": 2,
+      "title": "MIME-type parameters",
+      "number": "2"
+    },
+    {
+      "id": "webm-init-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-init-segments",
+      "level": 2,
+      "title": "Initialization Segments",
+      "number": "3"
+    },
+    {
+      "id": "webm-media-segments",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-media-segments",
+      "level": 2,
+      "title": "Media Segments",
+      "number": "4"
+    },
+    {
+      "id": "webm-random-access-points",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-random-access-points",
+      "level": 2,
+      "title": "Random Access Points",
+      "number": "5"
+    },
+    {
+      "id": "conformance",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#conformance",
+      "level": 2,
+      "title": "Conformance",
+      "number": "6"
+    },
+    {
+      "id": "acknowledgements",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#acknowledgements",
+      "level": 2,
+      "title": "Acknowledgments",
+      "number": "7"
+    },
+    {
+      "id": "references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#references",
+      "level": 2,
+      "title": "References",
+      "number": "A"
+    },
+    {
+      "id": "normative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#normative-references",
+      "level": 3,
+      "title": "Normative references",
+      "number": "A.1"
+    },
+    {
+      "id": "informative-references",
+      "href": "https://www.w3.org/TR/mse-byte-stream-format-webm/#informative-references",
+      "level": 3,
+      "title": "Informative references",
+      "number": "A.2"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/tr/idl/css-transitions-2.idl b/tr/idl/css-transitions-2.idl
new file mode 100644
index 000000000000..8baeded30f71
--- /dev/null
+++ b/tr/idl/css-transitions-2.idl
@@ -0,0 +1,13 @@
+// GENERATED CONTENT - DO NOT EDIT
+// Content was automatically extracted by Reffy into webref
+// (https://github.com/w3c/webref)
+// Source: CSS Transitions Level 2 (https://www.w3.org/TR/css-transitions-2/)
+
+[Exposed=Window]
+interface CSSStartingStyleRule : CSSGroupingRule {
+};
+
+[Exposed=Window]
+interface CSSTransition : Animation {
+  readonly attribute CSSOMString transitionProperty;
+};
diff --git a/tr/ids/css-transitions-2.json b/tr/ids/css-transitions-2.json
new file mode 100644
index 000000000000..9489aa6bd953
--- /dev/null
+++ b/tr/ids/css-transitions-2.json
@@ -0,0 +1,787 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/css-transitions-2/#toc-nav",
+    "https://www.w3.org/TR/css-transitions-2/#toc-jump",
+    "https://www.w3.org/TR/css-transitions-2/#toc-toggle",
+    "https://www.w3.org/TR/css-transitions-2/#title",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-state",
+    "https://www.w3.org/TR/css-transitions-2/#abstract",
+    "https://www.w3.org/TR/css-transitions-2/#sotd",
+    "https://www.w3.org/TR/css-transitions-2/#w3c_process_revision",
+    "https://www.w3.org/TR/css-transitions-2/#toc",
+    "https://www.w3.org/TR/css-transitions-2/#contents",
+    "https://www.w3.org/TR/css-transitions-2/#delta",
+    "https://www.w3.org/TR/css-transitions-2/#transitions",
+    "https://www.w3.org/TR/css-transitions-2/#transition-property-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-property",
+    "https://www.w3.org/TR/css-transitions-2/#transition-name-property",
+    "https://www.w3.org/TR/css-transitions-2/#issue-dd4d4ca2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-property%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-valdef-transition-property-all",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-border-left-width",
+    "https://www.w3.org/TR/css-transitions-2/#issue-e16c2c4d",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionable%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style",
+    "https://www.w3.org/TR/css-transitions-2/#transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transitionable",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-type",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-not-animatable",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-discrete",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-type%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-discrete%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-discrete%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-type%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#transition-duration-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-duration",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-duration%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-iteration-duration",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-effect",
+    "https://www.w3.org/TR/css-transitions-2/#transition-timing-function-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-timing-function",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-timing-function%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-easing-function",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-effect%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transformed-progress",
+    "https://www.w3.org/TR/css-transitions-2/#transition-delay-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-delay",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-delay%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-start-delay",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-effect%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#transition-behavior-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-propdef-transition-behavior",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-mult-comma",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-typedef-transition-behavior-value%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-typedef-transition-behavior-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-one",
+    "https://www.w3.org/TR/css-transitions-2/#transition-shorthand-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#single-transition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-valdef-transition-property-none",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-one%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-single-transition-property",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-any",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-time-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-any%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-typedef-easing-function",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-any%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-time-value%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-comb-any%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-typedef-transition-behavior-value%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#starting",
+    "https://www.w3.org/TR/css-transitions-2/#owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-property%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-running-transition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-cancel",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cancel-an-animation",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-cancel%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-connected",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-cancel%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-being-rendered",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-completed-transition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-dom-animation-cancel",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-running-transition%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#reversing",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-reversing-shortening-factor",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-reversing-adjusted-start-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-effect%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-effect%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#current-transition-generation-section",
+    "https://www.w3.org/TR/css-transitions-2/#current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-current-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#defining-before-change-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-being-rendered%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-at-ruledef-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-style-change-event%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-starting-style",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-starting-style%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-after-change-style%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#example-8d9992e9",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-background-color",
+    "https://www.w3.org/TR/css-transitions-2/#example-9fd848eb",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-display",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A7",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-display%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-valdef-display-none",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-valdef-display-block",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-before-change-style%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-keyframes",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-font-face-rule",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-layer",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A8",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A0%E2%93%AA",
+    "https://www.w3.org/TR/css-transitions-2/#the-cssstartingstylerule-interface",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A0%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-Exposed",
+    "https://www.w3.org/TR/css-transitions-2/#cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-cssstartingstylerule",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cssgroupingrule",
+    "https://www.w3.org/TR/css-transitions-2/#application",
+    "https://www.w3.org/TR/css-transitions-2/#animation-composite-order",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-concept-animation",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-class",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-class%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-global-animation-list",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A7",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-concept-tree-order",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A8",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-generation",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-generation%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-expanded-transition-property-name",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-global-animation-list%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-global-animation-list%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-play-state-idle",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%93%AA",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-play-state-idle%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-play-state-idle%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#cascade-level",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-class%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#transition-events",
+    "https://www.w3.org/TR/css-transitions-2/#event-dispatch",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-event-target",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-playback-events",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-csstransition%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-frame",
+    "https://www.w3.org/TR/css-transitions-2/#transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-transition-phase",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-frame%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-associated-effect",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-unresolved",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-current-time",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-current-time%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-pending-play-task",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-pending-pause-task",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-associated-effect%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-Events-TransitionEvent-elapsedTime",
+    "https://www.w3.org/TR/css-transitions-2/#interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-start-delay%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-active-duration",
+    "https://www.w3.org/TR/css-transitions-2/#interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-associated-effect-end",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-start-delay%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-active-duration%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-start-delay%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-active-duration%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-current-iteration",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-iteration-start",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-iteration-duration%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-associated-effect%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-frame%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transition-phase%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation-frame%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-end",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-end%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-end%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-end%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-end%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-interval-start%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitioncancel",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-active-time",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-fill-mode",
+    "https://www.w3.org/TR/css-transitions-2/#multiple-events-note",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-elapsed-time",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-Events-TransitionEvent-elapsedTime%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionevent",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitioncancel%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitioncancel%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A7",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A7",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A8",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitioncancel%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitioncancel%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionrun%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A0%E2%93%AA",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A8",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionstart%E2%91%A0%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-transitionend%E2%91%A0%E2%93%AA",
+    "https://www.w3.org/TR/css-transitions-2/#interface-dom",
+    "https://www.w3.org/TR/css-transitions-2/#the-CSSTransition-interface",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-Exposed%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-csstransition",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-animation",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cssomstring",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-dom-csstransition-transitionproperty",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cssomstring%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-expanded-transition-property-name%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#requirements-on-pending-style-changes",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-computed-value",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-dom-window-getcomputedstyle",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A5",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-dom-animatable-getanimations",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-csstransition%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-csstransition%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-opacity%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#example-9fcbce42",
+    "https://www.w3.org/TR/css-transitions-2/#privacy",
+    "https://www.w3.org/TR/css-transitions-2/#security",
+    "https://www.w3.org/TR/css-transitions-2/#changes",
+    "https://www.w3.org/TR/css-transitions-2/#changes-fpwd",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-at-ruledef-starting-style%E2%91%A0%E2%91%A1",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-cssstartingstylerule%E2%91%A0",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-csstransition%E2%91%A3",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-owning-element%E2%91%A0%E2%91%A6",
+    "https://www.w3.org/TR/css-transitions-2/#issues-common",
+    "https://www.w3.org/TR/css-transitions-2/#issue-af4a1d54",
+    "https://www.w3.org/TR/css-transitions-2/#issue-b197fc50",
+    "https://www.w3.org/TR/css-transitions-2/#issues-spec",
+    "https://www.w3.org/TR/css-transitions-2/#issue-5a3a5638",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-property%E2%91%A2",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-conformance",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-conventions",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-example",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-conformance-classes",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-partial",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-conform-future-proofing",
+    "https://www.w3.org/TR/css-transitions-2/#w3c-testing",
+    "https://www.w3.org/TR/css-transitions-2/#index",
+    "https://www.w3.org/TR/css-transitions-2/#index-defined-here",
+    "https://www.w3.org/TR/css-transitions-2/#index-defined-elsewhere",
+    "https://www.w3.org/TR/css-transitions-2/#7177b17d",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-7177b17d",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-7177b17d",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-7177b17d",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-7177b17d",
+    "https://www.w3.org/TR/css-transitions-2/#2754893b",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-2754893b",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-2754893b",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-2754893b",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-2754893b",
+    "https://www.w3.org/TR/css-transitions-2/#aaf0980c",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-aaf0980c",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-aaf0980c",
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+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-95d2951b",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-95d2951b",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-95d2951b",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-95d2951b",
+    "https://www.w3.org/TR/css-transitions-2/#34a3b4f9",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-34a3b4f9",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-34a3b4f9",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-34a3b4f9",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-34a3b4f9",
+    "https://www.w3.org/TR/css-transitions-2/#70c03e02",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-70c03e02",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-70c03e02",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-70c03e02",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-70c03e02",
+    "https://www.w3.org/TR/css-transitions-2/#d376a2a1",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-d376a2a1",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-d376a2a1",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-d376a2a1",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-d376a2a1",
+    "https://www.w3.org/TR/css-transitions-2/#f3133dfc",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-f3133dfc",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-f3133dfc",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-f3133dfc",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-f3133dfc",
+    "https://www.w3.org/TR/css-transitions-2/#e470564f",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-e470564f",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-e470564f",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-e470564f",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-e470564f",
+    "https://www.w3.org/TR/css-transitions-2/#66f1fdbd",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-66f1fdbd",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-66f1fdbd",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-66f1fdbd",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-66f1fdbd",
+    "https://www.w3.org/TR/css-transitions-2/#1085be18",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-1085be18",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-1085be18",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-1085be18",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-1085be18",
+    "https://www.w3.org/TR/css-transitions-2/#6dbf7050",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-6dbf7050",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-6dbf7050",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-6dbf7050",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-6dbf7050",
+    "https://www.w3.org/TR/css-transitions-2/#0d5d7f26",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-0d5d7f26",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-0d5d7f26",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-0d5d7f26",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-0d5d7f26",
+    "https://www.w3.org/TR/css-transitions-2/#2cec4673",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-2cec4673",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-2cec4673",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-2cec4673",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-2cec4673",
+    "https://www.w3.org/TR/css-transitions-2/#b9fc59f6",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-b9fc59f6",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-b9fc59f6",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-b9fc59f6",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-b9fc59f6",
+    "https://www.w3.org/TR/css-transitions-2/#a32b2c46",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-a32b2c46",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-a32b2c46",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-a32b2c46",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-a32b2c46",
+    "https://www.w3.org/TR/css-transitions-2/#60a46ec8",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-60a46ec8",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-60a46ec8",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-60a46ec8",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-60a46ec8",
+    "https://www.w3.org/TR/css-transitions-2/#a3791371",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-a3791371",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-a3791371",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-a3791371",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-a3791371",
+    "https://www.w3.org/TR/css-transitions-2/#c56c8d32",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-c56c8d32",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-c56c8d32",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-c56c8d32",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-c56c8d32",
+    "https://www.w3.org/TR/css-transitions-2/#ddbb25e9",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-ddbb25e9",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-ddbb25e9",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-ddbb25e9",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-ddbb25e9",
+    "https://www.w3.org/TR/css-transitions-2/#4bdc5b39",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-4bdc5b39",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-4bdc5b39",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-4bdc5b39",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-4bdc5b39",
+    "https://www.w3.org/TR/css-transitions-2/#b174f067",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-b174f067",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-b174f067",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-b174f067",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-b174f067",
+    "https://www.w3.org/TR/css-transitions-2/#e11c9e74",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-e11c9e74",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-e11c9e74",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-e11c9e74",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-e11c9e74",
+    "https://www.w3.org/TR/css-transitions-2/#0660ef12",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-0660ef12",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-0660ef12",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-0660ef12",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-0660ef12",
+    "https://www.w3.org/TR/css-transitions-2/#7d5534d1",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-7d5534d1",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-7d5534d1",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-7d5534d1",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-7d5534d1",
+    "https://www.w3.org/TR/css-transitions-2/#f1b660d3",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-f1b660d3",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-f1b660d3",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-f1b660d3",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-f1b660d3",
+    "https://www.w3.org/TR/css-transitions-2/#889e932f",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-889e932f",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-889e932f",
+    "https://www.w3.org/TR/css-transitions-2/#infopanel-for-889e932f",
+    "https://www.w3.org/TR/css-transitions-2/#infopaneltitle-for-889e932f",
+    "https://www.w3.org/TR/css-transitions-2/#references",
+    "https://www.w3.org/TR/css-transitions-2/#normative",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-animations-1",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-backgrounds-3",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-cascade-5",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-easing-1",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-fonts-5",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-transitions-1",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-values-4",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-cssom-1",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-dom",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-html",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-rfc2119",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-web-animations",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-webidl",
+    "https://www.w3.org/TR/css-transitions-2/#informative",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-color-4",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-css-display-3",
+    "https://www.w3.org/TR/css-transitions-2/#biblio-web-animations-2",
+    "https://www.w3.org/TR/css-transitions-2/#property-index",
+    "https://www.w3.org/TR/css-transitions-2/#ref-for-propdef-transition-behavior%E2%91%A4",
+    "https://www.w3.org/TR/css-transitions-2/#idl-index",
+    "https://www.w3.org/TR/css-transitions-2/#issues-index"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/intersection-observer.json b/tr/ids/intersection-observer.json
index 166eaaee76be..d763c17d72a3 100644
--- a/tr/ids/intersection-observer.json
+++ b/tr/ids/intersection-observer.json
@@ -228,8 +228,6 @@
     "https://www.w3.org/TR/intersection-observer/#ref-for-scrollport",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-intersection-root%E2%91%A3",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-target%E2%91%A7",
-    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A1",
-    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-cross-origin-domain-target%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-scrollmargin-slot",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserverinit-scrollmargin",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver%E2%91%A0%E2%91%A1",
@@ -273,7 +271,7 @@
     "https://www.w3.org/TR/intersection-observer/#ref-for-element-get-the-bounding-box",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-intersection-root%E2%91%A6",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-root-intersection-rectangle%E2%91%A0",
-    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A2",
+    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A1",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver%E2%91%A0%E2%91%A6",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-rootmargin-slot%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-propdef-margin",
@@ -283,11 +281,18 @@
     "https://www.w3.org/TR/intersection-observer/#ref-for-element%E2%91%A7",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-intersection-root%E2%91%A8",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-rootmargin%E2%91%A1",
+    "https://www.w3.org/TR/intersection-observer/#apply-scroll-margin-to-a-scrollport",
+    "https://www.w3.org/TR/intersection-observer/#infopanel-for-apply-scroll-margin-to-a-scrollport",
+    "https://www.w3.org/TR/intersection-observer/#infopaneltitle-for-apply-scroll-margin-to-a-scrollport",
+    "https://www.w3.org/TR/intersection-observer/#infopanel-for-apply-scroll-margin-to-a-scrollport",
+    "https://www.w3.org/TR/intersection-observer/#infopaneltitle-for-apply-scroll-margin-to-a-scrollport",
     "https://www.w3.org/TR/intersection-observer/#ref-for-scrollport%E2%91%A0",
-    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A3",
+    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A2",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver%E2%91%A0%E2%91%A7",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-scrollmargin-slot%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-propdef-margin%E2%91%A0",
+    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-same-origin-domain-target%E2%91%A3",
+    "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-cross-origin-domain-target%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-scrollmargin%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-target%E2%91%A0%E2%93%AA",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-intersection-root%E2%91%A0%E2%93%AA",
@@ -662,6 +667,7 @@
     "https://www.w3.org/TR/intersection-observer/#ref-for-scroll-container",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver%E2%91%A1%E2%91%A7",
     "https://www.w3.org/TR/intersection-observer/#ref-for-dom-intersectionobserver-scrollmargin-slot%E2%91%A2",
+    "https://www.w3.org/TR/intersection-observer/#ref-for-apply-scroll-margin-to-a-scrollport",
     "https://www.w3.org/TR/intersection-observer/#ref-for-intersectionobserver-content-clip%E2%91%A0",
     "https://www.w3.org/TR/intersection-observer/#ref-for-propdef-clip-path",
     "https://www.w3.org/TR/intersection-observer/#ref-for-browsing-context%E2%91%A0",
diff --git a/tr/ids/mse-byte-stream-format-isobmff.json b/tr/ids/mse-byte-stream-format-isobmff.json
new file mode 100644
index 000000000000..951877e158b3
--- /dev/null
+++ b/tr/ids/mse-byte-stream-format-isobmff.json
@@ -0,0 +1,54 @@
+{
+  "spec": {
+    "title": "ISO BMFF Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#initialUserConfig",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#respecDocument",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#toc-nav",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#toc-jump",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#toc-toggle",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#respecHeader",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#title",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#w3c-working-group-note-04-october-2016",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#sotd_patent",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#w3c_process_revision",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#toc",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#table-of-contents",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-note1",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-iso-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-note2",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-iso-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#movie-fragment-relative-addressing",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-note3",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#iso-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-iso-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#respecRFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#bib-ISOBMFF",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#bib-MEDIA-SOURCE",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#bib-RFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#h-informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#bib-INBANDTRACKS",
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/#back-to-top"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/mse-byte-stream-format-mp2t.json b/tr/ids/mse-byte-stream-format-mp2t.json
new file mode 100644
index 000000000000..d261d8dcae67
--- /dev/null
+++ b/tr/ids/mse-byte-stream-format-mp2t.json
@@ -0,0 +1,58 @@
+{
+  "spec": {
+    "title": "MPEG-2 TS Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#initialUserConfig",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#respecDocument",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#toc-nav",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#toc-jump",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#toc-toggle",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#respecHeader",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#title",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#w3c-working-group-note-04-october-2016",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#sotd_patent",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#w3c_process_revision",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#toc",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#table-of-contents",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-note1",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-general",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mpeg2ts-general",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mpeg2ts-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mpeg2ts-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mpeg2ts-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-discontinuities",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-mpeg2ts-discontinuities",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#mpeg2ts-timestampOffset",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#respecRFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-MEDIA-SOURCE",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-MPEG2TS",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-RFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-RFC3551",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-RFC6381",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#h-informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#bib-INBANDTRACKS",
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/#back-to-top"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/mse-byte-stream-format-mpeg-audio.json b/tr/ids/mse-byte-stream-format-mpeg-audio.json
new file mode 100644
index 000000000000..3a5248930a82
--- /dev/null
+++ b/tr/ids/mse-byte-stream-format-mpeg-audio.json
@@ -0,0 +1,50 @@
+{
+  "spec": {
+    "title": "MPEG Audio Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#initialUserConfig",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#respecDocument",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#toc-nav",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#toc-jump",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#toc-toggle",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#respecHeader",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#title",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#w3c-working-group-note-04-october-2016",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#sotd_patent",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#w3c_process_revision",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#toc",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#table-of-contents",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mime-types",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-mime-types",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-audio-frames",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-mpeg-audio-frames",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-audio-frame",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-metadata",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-mpeg-metadata",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#icecast",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-icecast",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#icecast-header",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-note1",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#mpeg-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-mpeg-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#respecRFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#h-normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#bib-MEDIA-SOURCE",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#bib-RFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#bib-RFC3003",
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/#back-to-top"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/mse-byte-stream-format-registry.json b/tr/ids/mse-byte-stream-format-registry.json
new file mode 100644
index 000000000000..94532b1c8063
--- /dev/null
+++ b/tr/ids/mse-byte-stream-format-registry.json
@@ -0,0 +1,46 @@
+{
+  "spec": {
+    "title": "Media Source Extensions Byte Stream Format Registry",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-registry/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#initialUserConfig",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#respecDocument",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#toc-nav",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#toc-jump",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#toc-toggle",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#respecHeader",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#title",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#w3c-working-group-note-04-october-2016",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#sotd_patent",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#w3c_process_revision",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#toc",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#table-of-contents",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#purpose",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-purpose",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#organization",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-organization",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#entry-requirements",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-entry-requirements",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#registry",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-registry",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#respecRFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#references",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#h-normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-MEDIA-SOURCE",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-MSE-FORMAT-ISOBMFF",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-MSE-FORMAT-MP2T",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-MSE-FORMAT-MPEG-AUDIO",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-MSE-FORMAT-WEBM",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#bib-RFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/#back-to-top"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/mse-byte-stream-format-webm.json b/tr/ids/mse-byte-stream-format-webm.json
new file mode 100644
index 000000000000..f332acc0772a
--- /dev/null
+++ b/tr/ids/mse-byte-stream-format-webm.json
@@ -0,0 +1,51 @@
+{
+  "spec": {
+    "title": "WebM Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-webm/"
+  },
+  "ids": [
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#initialUserConfig",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#respecDocument",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#toc-nav",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#toc-jump",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#toc-toggle",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#respecHeader",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#title",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#w3c-working-group-note-04-october-2016",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-abstract",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-sotd",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#sotd_patent",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#w3c_process_revision",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#toc",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#table-of-contents",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-introduction",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-webm-mime-parameters",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-note1",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-webm-init-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-webm-media-segments",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#webm-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-webm-random-access-points",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-conformance",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#respecRFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-acknowledgements",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-normative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#bib-MEDIA-SOURCE",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#bib-RFC2119",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#bib-WEBM",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#h-informative-references",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#bib-INBANDTRACKS",
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/#back-to-top"
+  ]
+}
\ No newline at end of file
diff --git a/tr/ids/network-error-logging-1.json b/tr/ids/network-error-logging-1.json
index e07149d09366..72287b1fd5c8 100644
--- a/tr/ids/network-error-logging-1.json
+++ b/tr/ids/network-error-logging-1.json
@@ -72,8 +72,10 @@
     "https://www.w3.org/TR/network-error-logging-1/#dfn-is-origin-potentially-trustworthy",
     "https://www.w3.org/TR/network-error-logging-1/#dfn-potentially-trustworthy-origins",
     "https://www.w3.org/TR/network-error-logging-1/#dfn-fragment",
-    "https://www.w3.org/TR/network-error-logging-1/#dfn-host",
+    "https://www.w3.org/TR/network-error-logging-1/#dfn-path",
+    "https://www.w3.org/TR/network-error-logging-1/#dfn-query",
     "https://www.w3.org/TR/network-error-logging-1/#dfn-url",
+    "https://www.w3.org/TR/network-error-logging-1/#dfn-url-serializer",
     "https://www.w3.org/TR/network-error-logging-1/#concepts",
     "https://www.w3.org/TR/network-error-logging-1/#x3-concepts",
     "https://www.w3.org/TR/network-error-logging-1/#network-requests",
diff --git a/tr/ids/sparql12-query.json b/tr/ids/sparql12-query.json
index 5ed4c363cf3b..f45e8ebec4b4 100644
--- a/tr/ids/sparql12-query.json
+++ b/tr/ids/sparql12-query.json
@@ -749,6 +749,7 @@
     "https://www.w3.org/TR/sparql12-query/#x18-5-1-aggregate-algebra",
     "https://www.w3.org/TR/sparql12-query/#defn_algGroup",
     "https://www.w3.org/TR/sparql12-query/#defn_algAggregation",
+    "https://www.w3.org/TR/sparql12-query/#defn_Flatten",
     "https://www.w3.org/TR/sparql12-query/#defn_Card",
     "https://www.w3.org/TR/sparql12-query/#setFunctions",
     "https://www.w3.org/TR/sparql12-query/#x18-5-1-1-set-functions",
diff --git a/tr/index.json b/tr/index.json
index 92c91503699f..fd1cafab9126 100644
--- a/tr/index.json
+++ b/tr/index.json
@@ -1,7 +1,7 @@
 {
   "type": "crawl",
   "title": "Reffy crawl",
-  "date": "2023-09-29T01:23:18.394Z",
+  "date": "2023-09-30T01:27:53.518Z",
   "options": {
     "fallback": "tr/index.json",
     "output": "report",
@@ -36,9 +36,9 @@
       "css-scroll-snap-2",
       "css-shapes-2",
       "css-size-adjust-1",
-      "css-transitions-2",
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@@ -110,47 +110,41 @@
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       "tc39-shadowrealm",
-      "tc39-symbols-as-weakmap-keys",
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       "gamepad-extensions",
       "mathml-aam",
       "media-playback-quality",
       "mediacapture-automation",
       "mediacapture-handle-actions",
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@@ -158,6 +152,7 @@
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@@ -221,6 +216,7 @@
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@@ -231,6 +227,7 @@
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@@ -375,6 +372,7 @@
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@@ -447,6 +445,11 @@
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@@ -596,10 +599,10 @@
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@@ -7673,6 +7743,7 @@
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@@ -16412,6 +16756,9 @@
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       },
+      "forks": [
+        "wasm-core-1-fork-gc"
+      ],
       "organization": "W3C",
       "groups": [
         {
@@ -17012,10 +17359,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-aac-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:19:56 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:19:06 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-aac-codec-registration.json",
       "refs": "refs/webcodecs-aac-codec-registration.json",
       "idl": "idl/webcodecs-aac-codec-registration.idl",
@@ -17068,10 +17415,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-alaw-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:33:13 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:32:00 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-alaw-codec-registration.json",
       "refs": "refs/webcodecs-alaw-codec-registration.json",
       "headings": "headings/webcodecs-alaw-codec-registration.json",
@@ -17122,10 +17469,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-av1-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:25:10 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:24:44 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-av1-codec-registration.json",
       "refs": "refs/webcodecs-av1-codec-registration.json",
       "idl": "idl/webcodecs-av1-codec-registration.idl",
@@ -17178,10 +17525,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-avc-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:14:37 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:13:35 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-avc-codec-registration.json",
       "refs": "refs/webcodecs-avc-codec-registration.json",
       "idl": "idl/webcodecs-avc-codec-registration.idl",
@@ -17234,10 +17581,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-codec-registry/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:12:48 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:11:57 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-codec-registry.json",
       "refs": "refs/webcodecs-codec-registry.json",
       "headings": "headings/webcodecs-codec-registry.json",
@@ -17288,10 +17635,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-flac-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:22:00 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:21:01 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-flac-codec-registration.json",
       "refs": "refs/webcodecs-flac-codec-registration.json",
       "idl": "idl/webcodecs-flac-codec-registration.idl",
@@ -17344,10 +17691,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-hevc-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:36:29 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:35:18 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-hevc-codec-registration.json",
       "refs": "refs/webcodecs-hevc-codec-registration.json",
       "idl": "idl/webcodecs-hevc-codec-registration.idl",
@@ -17400,10 +17747,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-mp3-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:17:45 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:17:30 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-mp3-codec-registration.json",
       "refs": "refs/webcodecs-mp3-codec-registration.json",
       "headings": "headings/webcodecs-mp3-codec-registration.json",
@@ -17454,10 +17801,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-opus-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:23:38 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:23:00 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-opus-codec-registration.json",
       "refs": "refs/webcodecs-opus-codec-registration.json",
       "idl": "idl/webcodecs-opus-codec-registration.idl",
@@ -17510,10 +17857,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-pcm-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:31:24 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:30:30 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-pcm-codec-registration.json",
       "refs": "refs/webcodecs-pcm-codec-registration.json",
       "headings": "headings/webcodecs-pcm-codec-registration.json",
@@ -17564,10 +17911,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-ulaw-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:34:58 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:33:36 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-ulaw-codec-registration.json",
       "refs": "refs/webcodecs-ulaw-codec-registration.json",
       "headings": "headings/webcodecs-ulaw-codec-registration.json",
@@ -17618,10 +17965,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-vorbis-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:16:13 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:15:30 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-vorbis-codec-registration.json",
       "refs": "refs/webcodecs-vorbis-codec-registration.json",
       "headings": "headings/webcodecs-vorbis-codec-registration.json",
@@ -17672,10 +18019,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-vp8-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:29:17 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:28:36 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-vp8-codec-registration.json",
       "refs": "refs/webcodecs-vp8-codec-registration.json",
       "headings": "headings/webcodecs-vp8-codec-registration.json",
@@ -17726,10 +18073,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs-vp9-codec-registration/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:27:16 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:26:55 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs-vp9-codec-registration.json",
       "refs": "refs/webcodecs-vp9-codec-registration.json",
       "idl": "idl/webcodecs-vp9-codec-registration.idl",
@@ -17788,10 +18135,10 @@
       ],
       "crawled": "https://www.w3.org/TR/webcodecs/",
       "crawlCacheInfo": {
-        "lastModified": "Thu, 28 Sep 2023 16:11:10 GMT"
+        "lastModified": "Sat, 30 Sep 2023 00:10:01 GMT"
       },
       "generator": "bikeshed",
-      "date": "28 September 2023",
+      "date": "30 September 2023",
       "links": "links/webcodecs.json",
       "refs": "refs/webcodecs.json",
       "events": "events/webcodecs.json",
diff --git a/tr/links/css-transitions-2.json b/tr/links/css-transitions-2.json
new file mode 100644
index 000000000000..07364543bcba
--- /dev/null
+++ b/tr/links/css-transitions-2.json
@@ -0,0 +1,239 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "links": {
+    "https://datatracker.ietf.org/doc/html/rfc2119": {},
+    "https://dom.spec.whatwg.org/": {
+      "anchors": [
+        "connected",
+        "concept-tree-order",
+        "event-target"
+      ],
+      "specShortname": "dom"
+    },
+    "https://github.com/w3c/csswg-drafts/issues": {},
+    "https://html.spec.whatwg.org/multipage/": {},
+    "https://html.spec.whatwg.org/multipage/rendering.html": {
+      "anchors": [
+        "being-rendered"
+      ]
+    },
+    "https://lists.w3.org/Archives/Public/public-css-archive/": {},
+    "https://lists.w3.org/Archives/Public/public-css-testsuite": {},
+    "https://lists.w3.org/Archives/Public/public-fx/2015JulSep/thread.html": {
+      "anchors": [
+        "msg34"
+      ]
+    },
+    "https://lists.w3.org/Archives/Public/www-style/": {},
+    "https://lists.w3.org/Archives/Public/www-style/2011Mar/0729.html": {},
+    "https://lists.w3.org/Archives/Public/www-style/2013Jun/0376.html": {},
+    "https://webidl.spec.whatwg.org/": {
+      "anchors": [
+        "Exposed"
+      ],
+      "specShortname": "webidl"
+    },
+    "https://www.w3.org/2023/Process-20230612/": {
+      "anchors": [
+        "recs-and-notes"
+      ]
+    },
+    "https://www.w3.org/Consortium/Patent-Policy-20200915/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/Style/CSS/Test/": {},
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/CSS/": {
+      "anchors": [
+        "future-proofing",
+        "unstable",
+        "proprietary-extension"
+      ],
+      "specShortname": "CSS22"
+    },
+    "https://www.w3.org/TR/CSS21/conform.html": {
+      "anchors": [
+        "style-sheet",
+        "user-agent",
+        "ignore"
+      ],
+      "specShortname": "CSS2"
+    },
+    "https://www.w3.org/TR/css-animations-1/": {
+      "anchors": [
+        "at-ruledef-keyframes"
+      ],
+      "specShortname": "css-animations-1"
+    },
+    "https://www.w3.org/TR/css-backgrounds-3/": {
+      "anchors": [
+        "propdef-border-left-width",
+        "propdef-background-color"
+      ],
+      "specShortname": "css-backgrounds-3"
+    },
+    "https://www.w3.org/TR/css-cascade-5/": {
+      "anchors": [
+        "at-ruledef-layer",
+        "computed-value"
+      ],
+      "specShortname": "css-cascade-5"
+    },
+    "https://www.w3.org/TR/css-cascade/": {
+      "anchors": [
+        "initial-values",
+        "applies-to",
+        "inherited-property",
+        "computed"
+      ],
+      "specShortname": "css-cascade-4"
+    },
+    "https://www.w3.org/TR/css-color-4/": {
+      "anchors": [
+        "propdef-opacity"
+      ],
+      "specShortname": "css-color-4"
+    },
+    "https://www.w3.org/TR/css-display-3/": {
+      "anchors": [
+        "propdef-display",
+        "valdef-display-none",
+        "valdef-display-block"
+      ],
+      "specShortname": "css-display-3"
+    },
+    "https://www.w3.org/TR/css-easing-1/": {
+      "anchors": [
+        "easing-function",
+        "typedef-easing-function"
+      ],
+      "specShortname": "css-easing-1"
+    },
+    "https://www.w3.org/TR/css-fonts-5/": {
+      "anchors": [
+        "at-font-face-rule"
+      ],
+      "specShortname": "css-fonts-5"
+    },
+    "https://www.w3.org/TR/css-pseudo/": {
+      "anchors": [
+        "generated-content"
+      ],
+      "specShortname": "css-pseudo-4"
+    },
+    "https://www.w3.org/TR/css-transitions-1/": {
+      "anchors": [
+        "propdef-transition-property",
+        "transition-property-property",
+        "valdef-transition-property-all",
+        "before-change-style",
+        "after-change-style",
+        "propdef-transition-duration",
+        "propdef-transition-timing-function",
+        "propdef-transition-delay",
+        "propdef-transition",
+        "valdef-transition-property-none",
+        "single-transition-property",
+        "running-transition",
+        "transition-cancel",
+        "completed-transition",
+        "transition-reversing-shortening-factor",
+        "transition-reversing-adjusted-start-value",
+        "style-change-event",
+        "starting",
+        "Events-TransitionEvent-elapsedTime",
+        "transitionrun",
+        "transitionstart",
+        "transitionend",
+        "transitioncancel",
+        "transitionevent"
+      ],
+      "specShortname": "css-transitions-1"
+    },
+    "https://www.w3.org/TR/css-values-4/": {
+      "anchors": [
+        "mult-comma",
+        "comb-one",
+        "comb-any",
+        "time-value"
+      ],
+      "specShortname": "css-values-4"
+    },
+    "https://www.w3.org/TR/css-values/": {
+      "anchors": [
+        "value-defs",
+        "percentages"
+      ],
+      "specShortname": "css-values-4"
+    },
+    "https://www.w3.org/TR/cssom-1/": {
+      "anchors": [
+        "cssgroupingrule",
+        "cssomstring",
+        "dom-window-getcomputedstyle"
+      ],
+      "specShortname": "cssom-1"
+    },
+    "https://www.w3.org/TR/cssom/": {
+      "anchors": [
+        "serializing-css-values"
+      ],
+      "specShortname": "cssom-1"
+    },
+    "https://www.w3.org/TR/web-animations-1/": {
+      "anchors": [
+        "animation-type",
+        "not-animatable",
+        "discrete",
+        "iteration-duration",
+        "animation-effect",
+        "time-transformations",
+        "transformed-progress",
+        "start-delay",
+        "cancel-an-animation",
+        "dom-animation-cancel",
+        "concept-animation",
+        "animation-class",
+        "global-animation-list",
+        "play-state-idle",
+        "applying-the-composited-result",
+        "animation-playback-events",
+        "animation-frame",
+        "animation-associated-effect",
+        "unresolved",
+        "animation-current-time",
+        "pending-play-task",
+        "pending-pause-task",
+        "animation-effect-phases-and-states",
+        "active-duration",
+        "associated-effect-end",
+        "current-iteration",
+        "iteration-start",
+        "active-time",
+        "fill-mode",
+        "animation"
+      ],
+      "specShortname": "web-animations-1"
+    },
+    "https://www.w3.org/TR/web-animations-2/": {
+      "anchors": [
+        "dom-animatable-getanimations"
+      ],
+      "specShortname": "web-animations-2"
+    },
+    "https://www.w3.org/TR/web-animations/": {
+      "anchors": [
+        "animation-type"
+      ],
+      "specShortname": "web-animations-1"
+    },
+    "https://www.w3.org/groups/wg/css": {},
+    "https://www.w3.org/groups/wg/css/ipr": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/media-source-2.json b/tr/links/media-source-2.json
index dabc93db8615..5c248716d779 100644
--- a/tr/links/media-source-2.json
+++ b/tr/links/media-source-2.json
@@ -215,7 +215,9 @@
         "common-BufferSource"
       ]
     },
-    "https://www.w3.org/TR/mse-byte-stream-format-registry/": {},
+    "https://www.w3.org/TR/mse-byte-stream-format-registry/": {
+      "specShortname": "mse-byte-stream-format-registry"
+    },
     "https://www.w3.org/groups/wg/media": {},
     "https://www.w3.org/groups/wg/media/ipr": {}
   }
diff --git a/tr/links/mse-byte-stream-format-isobmff.json b/tr/links/mse-byte-stream-format-isobmff.json
new file mode 100644
index 000000000000..2cbe45d4994d
--- /dev/null
+++ b/tr/links/mse-byte-stream-format-isobmff.json
@@ -0,0 +1,45 @@
+{
+  "spec": {
+    "title": "ISO BMFF Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+  },
+  "links": {
+    "http://standards.iso.org/ittf/PubliclyAvailableStandards/c061988_ISO_IEC_14496-12_2012.zip": {},
+    "http://standards.iso.org/ittf/PubliclyAvailableStandards/c068960_ISO_IEC_14496-12_2015.zip": {},
+    "http://tools.ietf.org/html/rfc6381": {},
+    "http://w3.org/brief/Mjcw": {},
+    "https://dev.w3.org/html5/html-sourcing-inband-tracks/": {},
+    "https://github.com/w3c/media-source/issues": {},
+    "https://lists.w3.org/Archives/Public/public-html-media/": {},
+    "https://tools.ietf.org/html/rfc2119": {},
+    "https://www.w3.org/2004/01/pp-impl/40318/status": {},
+    "https://www.w3.org/2015/Process-20150901/": {},
+    "https://www.w3.org/Consortium/Patent-Policy-20040205/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/html51/semantics-embedded-content.html": {
+      "anchors": [
+        "audiotrack-audiotrack",
+        "videotrack-videotrack",
+        "texttrack-texttrack"
+      ]
+    },
+    "https://www.w3.org/TR/media-source/": {
+      "anchors": [
+        "init-segment",
+        "media-segment",
+        "random-access-point",
+        "byte-stream-formats",
+        "widl-MediaSource-isTypeSupported-boolean-DOMString-type",
+        "widl-MediaSource-addSourceBuffer-SourceBuffer-DOMString-type",
+        "sourcebuffer-append-error"
+      ],
+      "specShortname": "media-source-2"
+    },
+    "https://www.w3.org/html/wg/": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/mse-byte-stream-format-mp2t.json b/tr/links/mse-byte-stream-format-mp2t.json
new file mode 100644
index 000000000000..9428e79fd3af
--- /dev/null
+++ b/tr/links/mse-byte-stream-format-mp2t.json
@@ -0,0 +1,50 @@
+{
+  "spec": {
+    "title": "MPEG-2 TS Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+  },
+  "links": {
+    "http://w3.org/brief/Mjcw": {},
+    "http://www.itu.int/rec/T-REC-H.222.0-201206-I": {},
+    "https://dev.w3.org/html5/html-sourcing-inband-tracks/": {},
+    "https://github.com/w3c/media-source/issues": {},
+    "https://lists.w3.org/Archives/Public/public-html-media/": {},
+    "https://tools.ietf.org/html/rfc2119": {},
+    "https://tools.ietf.org/html/rfc3551": {},
+    "https://tools.ietf.org/html/rfc6381": {},
+    "https://www.w3.org/2004/01/pp-impl/40318/status": {},
+    "https://www.w3.org/2015/Process-20150901/": {},
+    "https://www.w3.org/Consortium/Patent-Policy-20040205/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/html51/semantics-embedded-content.html": {
+      "anchors": [
+        "audiotrack-audiotrack",
+        "videotrack-videotrack",
+        "texttrack-texttrack"
+      ]
+    },
+    "https://www.w3.org/TR/media-source/": {
+      "anchors": [
+        "init-segment",
+        "media-segment",
+        "random-access-point",
+        "byte-stream-formats",
+        "widl-MediaSource-isTypeSupported-boolean-DOMString-type",
+        "widl-MediaSource-addSourceBuffer-SourceBuffer-DOMString-type",
+        "sourcebuffer-append-error",
+        "idl-def-SourceBuffer",
+        "coded-frame",
+        "sourcebuffer-coded-frame-processing",
+        "widl-SourceBuffer-abort-void",
+        "widl-SourceBuffer-timestampOffset"
+      ],
+      "specShortname": "media-source-2"
+    },
+    "https://www.w3.org/html/wg/": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/mse-byte-stream-format-mpeg-audio.json b/tr/links/mse-byte-stream-format-mpeg-audio.json
new file mode 100644
index 000000000000..2298e3f3729b
--- /dev/null
+++ b/tr/links/mse-byte-stream-format-mpeg-audio.json
@@ -0,0 +1,48 @@
+{
+  "spec": {
+    "title": "MPEG Audio Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+  },
+  "links": {
+    "http://en.wikipedia.org/wiki/Icecast": {},
+    "http://en.wikipedia.org/wiki/SHOUTcast": {},
+    "http://forums.radiotoolbox.com/viewtopic.php?t=74": {},
+    "http://id3.org/ID3v1": {},
+    "http://id3.org/id3v2.3.0": {},
+    "http://tools.ietf.org/html/rfc3003": {},
+    "http://w3.org/brief/Mjcw": {},
+    "http://www.iso.org/iso/catalogue_detail.htm?csnumber=22412": {},
+    "http://www.iso.org/iso/catalogue_detail.htm?csnumber=26797": {},
+    "http://www.iso.org/iso/catalogue_detail.htm?csnumber=53943": {},
+    "https://github.com/w3c/media-source/issues": {},
+    "https://lists.w3.org/Archives/Public/public-html-media/": {},
+    "https://tools.ietf.org/html/rfc2119": {},
+    "https://tools.ietf.org/html/rfc3003": {},
+    "https://www.w3.org/2004/01/pp-impl/40318/status": {},
+    "https://www.w3.org/2015/Process-20150901/": {},
+    "https://www.w3.org/Consortium/Patent-Policy-20040205/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/html51/semantics-embedded-content.html": {
+      "anchors": [
+        "texttrack-texttrack"
+      ]
+    },
+    "https://www.w3.org/TR/media-source/": {
+      "anchors": [
+        "init-segment",
+        "media-segment",
+        "random-access-point",
+        "byte-stream-formats",
+        "widl-MediaSource-isTypeSupported-boolean-DOMString-type",
+        "widl-MediaSource-addSourceBuffer-SourceBuffer-DOMString-type"
+      ],
+      "specShortname": "media-source-2"
+    },
+    "https://www.w3.org/html/wg/": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/mse-byte-stream-format-registry.json b/tr/links/mse-byte-stream-format-registry.json
new file mode 100644
index 000000000000..da9b60965380
--- /dev/null
+++ b/tr/links/mse-byte-stream-format-registry.json
@@ -0,0 +1,43 @@
+{
+  "spec": {
+    "title": "Media Source Extensions Byte Stream Format Registry",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-registry/"
+  },
+  "links": {
+    "http://lists.w3.org/Archives/Public/public-html-media/": {},
+    "http://w3.org/brief/Mjcw": {},
+    "https://github.com/w3c/media-source/issues": {},
+    "https://lists.w3.org/Archives/Public/public-html-media/": {},
+    "https://tools.ietf.org/html/rfc2119": {},
+    "https://www.w3.org/2004/01/pp-impl/40318/status": {},
+    "https://www.w3.org/2015/Process-20150901/": {},
+    "https://www.w3.org/Consortium/Patent-Policy-20040205/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/media-source/": {
+      "anchors": [
+        "idl-def-SourceBuffer",
+        "sourcebuffer-generate-timestamps-flag",
+        "byte-stream-formats"
+      ],
+      "specShortname": "media-source-2"
+    },
+    "https://www.w3.org/TR/mse-byte-stream-format-isobmff/": {
+      "specShortname": "mse-byte-stream-format-isobmff"
+    },
+    "https://www.w3.org/TR/mse-byte-stream-format-mp2t/": {
+      "specShortname": "mse-byte-stream-format-mp2t"
+    },
+    "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/": {
+      "specShortname": "mse-byte-stream-format-mpeg-audio"
+    },
+    "https://www.w3.org/TR/mse-byte-stream-format-webm/": {
+      "specShortname": "mse-byte-stream-format-webm"
+    },
+    "https://www.w3.org/html/wg/": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/mse-byte-stream-format-webm.json b/tr/links/mse-byte-stream-format-webm.json
new file mode 100644
index 000000000000..88d7fad70426
--- /dev/null
+++ b/tr/links/mse-byte-stream-format-webm.json
@@ -0,0 +1,57 @@
+{
+  "spec": {
+    "title": "WebM Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-webm/"
+  },
+  "links": {
+    "http://w3.org/brief/Mjcw": {},
+    "http://www.webmproject.org/docs/container/": {
+      "anchors": [
+        "ebml-basics",
+        "segment",
+        "segment-information",
+        "track",
+        "cluster",
+        "webm-guidelines",
+        "cueing-data",
+        "chapters",
+        "muxer-guidelines"
+      ]
+    },
+    "https://dev.w3.org/html5/html-sourcing-inband-tracks/": {},
+    "https://github.com/w3c/media-source/issues": {},
+    "https://lists.w3.org/Archives/Public/public-html-media/": {},
+    "https://tools.ietf.org/html/rfc2119": {},
+    "https://www.w3.org/2004/01/pp-impl/40318/status": {},
+    "https://www.w3.org/2015/Process-20150901/": {},
+    "https://www.w3.org/Consortium/Patent-Policy-20040205/": {
+      "anchors": [
+        "def-essential",
+        "sec-Disclosure"
+      ]
+    },
+    "https://www.w3.org/TR/": {},
+    "https://www.w3.org/TR/html51/semantics-embedded-content.html": {
+      "anchors": [
+        "audiotrack-audiotrack",
+        "videotrack-videotrack",
+        "texttrack-texttrack"
+      ]
+    },
+    "https://www.w3.org/TR/media-source/": {
+      "anchors": [
+        "init-segment",
+        "media-segment",
+        "random-access-point",
+        "byte-stream-formats",
+        "widl-MediaSource-isTypeSupported-boolean-DOMString-type",
+        "widl-MediaSource-addSourceBuffer-SourceBuffer-DOMString-type",
+        "sourcebuffer-append-error",
+        "presentation-timestamp"
+      ],
+      "specShortname": "media-source-2"
+    },
+    "https://www.w3.org/html/wg/": {},
+    "https://www.webmproject.org/docs/container/": {}
+  }
+}
\ No newline at end of file
diff --git a/tr/links/network-error-logging-1.json b/tr/links/network-error-logging-1.json
index b2f3e73a2412..3d26f437b15e 100644
--- a/tr/links/network-error-logging-1.json
+++ b/tr/links/network-error-logging-1.json
@@ -71,8 +71,10 @@
     "https://url.spec.whatwg.org/": {
       "anchors": [
         "concept-url-fragment",
-        "concept-host",
-        "concept-url"
+        "concept-url-path",
+        "concept-url-query",
+        "concept-url",
+        "concept-url-serializer"
       ],
       "specShortname": "url"
     },
diff --git a/tr/links/permissions.json b/tr/links/permissions.json
index f624798d20f2..58cb2d9785e0 100644
--- a/tr/links/permissions.json
+++ b/tr/links/permissions.json
@@ -124,7 +124,9 @@
       ],
       "specShortname": "ecmascript"
     },
-    "https://w3c.github.io/permissions-registry/": {},
+    "https://w3c.github.io/permissions-registry/": {
+      "specShortname": "permissions-registry"
+    },
     "https://webidl.spec.whatwg.org/": {
       "anchors": [
         "dfn-dictionary",
diff --git a/tr/links/webgpu.json b/tr/links/webgpu.json
index d14d68eabe68..d244cc4d4388 100644
--- a/tr/links/webgpu.json
+++ b/tr/links/webgpu.json
@@ -190,9 +190,7 @@
     },
     "https://lists.w3.org/Archives/Public/public-gpu/": {},
     "https://pcisig.com/": {},
-    "https://sourcemaps.info/spec.html": {
-      "specShortname": "sourcemap"
-    },
+    "https://sourcemaps.info/spec.html": {},
     "https://tc39.es/ecma262/": {
       "anchors": [
         "agent",
diff --git a/tr/refs/css-transitions-2.json b/tr/refs/css-transitions-2.json
new file mode 100644
index 000000000000..df50f2a8f3a1
--- /dev/null
+++ b/tr/refs/css-transitions-2.json
@@ -0,0 +1,76 @@
+{
+  "spec": {
+    "title": "CSS Transitions Level 2",
+    "url": "https://www.w3.org/TR/css-transitions-2/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "CSS-ANIMATIONS-1",
+        "url": "https://www.w3.org/TR/css-animations-1/"
+      },
+      {
+        "name": "CSS-BACKGROUNDS-3",
+        "url": "https://www.w3.org/TR/css-backgrounds-3/"
+      },
+      {
+        "name": "CSS-CASCADE-5",
+        "url": "https://www.w3.org/TR/css-cascade-5/"
+      },
+      {
+        "name": "CSS-EASING-1",
+        "url": "https://www.w3.org/TR/css-easing-1/"
+      },
+      {
+        "name": "CSS-FONTS-5",
+        "url": "https://www.w3.org/TR/css-fonts-5/"
+      },
+      {
+        "name": "CSS-TRANSITIONS-1",
+        "url": "https://www.w3.org/TR/css-transitions-1/"
+      },
+      {
+        "name": "CSS-VALUES-4",
+        "url": "https://www.w3.org/TR/css-values-4/"
+      },
+      {
+        "name": "CSSOM-1",
+        "url": "https://www.w3.org/TR/cssom-1/"
+      },
+      {
+        "name": "DOM",
+        "url": "https://dom.spec.whatwg.org/"
+      },
+      {
+        "name": "HTML",
+        "url": "https://html.spec.whatwg.org/multipage/"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://datatracker.ietf.org/doc/html/rfc2119"
+      },
+      {
+        "name": "WEB-ANIMATIONS",
+        "url": "https://www.w3.org/TR/web-animations-1/"
+      },
+      {
+        "name": "WEBIDL",
+        "url": "https://webidl.spec.whatwg.org/"
+      }
+    ],
+    "informative": [
+      {
+        "name": "CSS-COLOR-4",
+        "url": "https://www.w3.org/TR/css-color-4/"
+      },
+      {
+        "name": "CSS-DISPLAY-3",
+        "url": "https://www.w3.org/TR/css-display-3/"
+      },
+      {
+        "name": "WEB-ANIMATIONS-2",
+        "url": "https://www.w3.org/TR/web-animations-2/"
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/tr/refs/mse-byte-stream-format-isobmff.json b/tr/refs/mse-byte-stream-format-isobmff.json
new file mode 100644
index 000000000000..7ade7b2947af
--- /dev/null
+++ b/tr/refs/mse-byte-stream-format-isobmff.json
@@ -0,0 +1,28 @@
+{
+  "spec": {
+    "title": "ISO BMFF Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "ISOBMFF",
+        "url": "http://standards.iso.org/ittf/PubliclyAvailableStandards/c068960_ISO_IEC_14496-12_2015.zip"
+      },
+      {
+        "name": "MEDIA-SOURCE",
+        "url": "https://www.w3.org/TR/media-source/"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://tools.ietf.org/html/rfc2119"
+      }
+    ],
+    "informative": [
+      {
+        "name": "INBANDTRACKS",
+        "url": "https://dev.w3.org/html5/html-sourcing-inband-tracks/"
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/tr/refs/mse-byte-stream-format-mp2t.json b/tr/refs/mse-byte-stream-format-mp2t.json
new file mode 100644
index 000000000000..0433f82f63c5
--- /dev/null
+++ b/tr/refs/mse-byte-stream-format-mp2t.json
@@ -0,0 +1,36 @@
+{
+  "spec": {
+    "title": "MPEG-2 TS Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "MEDIA-SOURCE",
+        "url": "https://www.w3.org/TR/media-source/"
+      },
+      {
+        "name": "MPEG2TS",
+        "url": "http://www.itu.int/rec/T-REC-H.222.0-201206-I"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://tools.ietf.org/html/rfc2119"
+      },
+      {
+        "name": "RFC3551",
+        "url": "https://tools.ietf.org/html/rfc3551"
+      },
+      {
+        "name": "RFC6381",
+        "url": "https://tools.ietf.org/html/rfc6381"
+      }
+    ],
+    "informative": [
+      {
+        "name": "INBANDTRACKS",
+        "url": "https://dev.w3.org/html5/html-sourcing-inband-tracks/"
+      }
+    ]
+  }
+}
\ No newline at end of file
diff --git a/tr/refs/mse-byte-stream-format-mpeg-audio.json b/tr/refs/mse-byte-stream-format-mpeg-audio.json
new file mode 100644
index 000000000000..52dc41d62bc7
--- /dev/null
+++ b/tr/refs/mse-byte-stream-format-mpeg-audio.json
@@ -0,0 +1,23 @@
+{
+  "spec": {
+    "title": "MPEG Audio Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "MEDIA-SOURCE",
+        "url": "https://www.w3.org/TR/media-source/"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://tools.ietf.org/html/rfc2119"
+      },
+      {
+        "name": "RFC3003",
+        "url": "https://tools.ietf.org/html/rfc3003"
+      }
+    ],
+    "informative": []
+  }
+}
\ No newline at end of file
diff --git a/tr/refs/mse-byte-stream-format-registry.json b/tr/refs/mse-byte-stream-format-registry.json
new file mode 100644
index 000000000000..f3cdc063424c
--- /dev/null
+++ b/tr/refs/mse-byte-stream-format-registry.json
@@ -0,0 +1,35 @@
+{
+  "spec": {
+    "title": "Media Source Extensions Byte Stream Format Registry",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-registry/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "MEDIA-SOURCE",
+        "url": "https://www.w3.org/TR/media-source/"
+      },
+      {
+        "name": "MSE-FORMAT-ISOBMFF",
+        "url": "https://www.w3.org/TR/mse-byte-stream-format-isobmff/"
+      },
+      {
+        "name": "MSE-FORMAT-MP2T",
+        "url": "https://www.w3.org/TR/mse-byte-stream-format-mp2t/"
+      },
+      {
+        "name": "MSE-FORMAT-MPEG-AUDIO",
+        "url": "https://www.w3.org/TR/mse-byte-stream-format-mpeg-audio/"
+      },
+      {
+        "name": "MSE-FORMAT-WEBM",
+        "url": "https://www.w3.org/TR/mse-byte-stream-format-webm/"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://tools.ietf.org/html/rfc2119"
+      }
+    ],
+    "informative": []
+  }
+}
\ No newline at end of file
diff --git a/tr/refs/mse-byte-stream-format-webm.json b/tr/refs/mse-byte-stream-format-webm.json
new file mode 100644
index 000000000000..af53e6effa0d
--- /dev/null
+++ b/tr/refs/mse-byte-stream-format-webm.json
@@ -0,0 +1,28 @@
+{
+  "spec": {
+    "title": "WebM Byte Stream Format",
+    "url": "https://www.w3.org/TR/mse-byte-stream-format-webm/"
+  },
+  "refs": {
+    "normative": [
+      {
+        "name": "MEDIA-SOURCE",
+        "url": "https://www.w3.org/TR/media-source/"
+      },
+      {
+        "name": "RFC2119",
+        "url": "https://tools.ietf.org/html/rfc2119"
+      },
+      {
+        "name": "WEBM",
+        "url": "https://www.webmproject.org/docs/container/"
+      }
+    ],
+    "informative": [
+      {
+        "name": "INBANDTRACKS",
+        "url": "https://dev.w3.org/html5/html-sourcing-inband-tracks/"
+      }
+    ]
+  }
+}
\ No newline at end of file