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<!doctype html>
<html lang="en-US">
<head>
<meta charset="utf-8" />
<title>HTML Accessibility API Mappings 1.0</title>
<script src="https://www.w3.org/Tools/respec/respec-w3c" class="remove" defer="defer"></script>
<script src="../common/script/resolveReferences.js" class="remove"></script>
<script src="../common/script/utility.js" class="remove"></script>
<script src="../common/biblio.js" class="remove" defer="defer"></script>
<script src="../common/script/participants.js" class="remove"></script>
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<body>
<section id="abstract">
<p>
HTML Accessibility API Mappings (HTML-AAM) defines how <a class="termref">user agents</a> map <abbr title="HyperText Markup Language">HTML</abbr> [[HTML]] elements and attributes to platform
<a class="termref" data-lt="accessibility API">accessibility application programming interfaces (<abbr title="Application Programming Interfaces">APIs</abbr>)</a>. It leverages and extends the
[[[core-aam-1.2]]] and the [[[accname-1.2]]] for use with the HTML host language. Documenting these mappings promotes interoperable exposure of roles, states, properties, and events
implemented by accessibility APIs and helps to ensure that this information appears in a manner consistent with author intent.
</p>
<p>
The HTML-AAM is part of the <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr> suite described in the
<a href="https://www.w3.org/WAI/intro/aria.php"><abbr title="Accessible Rich Internet Application">WAI-ARIA</abbr> Overview</a>.
</p>
</section>
<section id="sotd">
<p class="note">
<strong>This document is subject to change without notice.</strong>
</p>
<p>
This document was initially developed by and with the approval of the <a href="https://www.w3.org/WAI/PF/html-accessibility-tf.html">HTML Accessibility Taskforce</a>, a joint task force of the
<a href="https://www.w3.org/WAI/PF/">Protocols and Formats Working Group</a> and the <a href="https://www.w3.org/html/wg/">HTML Working Group</a>. Work continued with the successor groups
<a href="https://www.w3.org/WAI/ARIA/">Accessible Rich Internet Applications Working Group</a> and the <a href="https://www.w3.org/2019/webapps/">Web Applications Working Group</a>. This
document is now maintained solely by the <a href="https://www.w3.org/WAI/ARIA/">Accessible Rich Internet Applications Working Group</a>.
</p>
</section>
<section id="intro" class="informative">
<h2>Introduction</h2>
<p>
This specification defines how HTML user agents respond to and expose [=role=], [=state=] and [=ARIA/property=] information provided for Web content. Unless indicated otherwise, an HTML
element or attribute with default [[[wai-aria-1.2]]] semantics must be exposed to the platform <a class="termref">accessibility APIs</a> according to the relevant WAI-ARIA mappings defined in
the [[[core-aam-1.2]]] specification.
</p>
<p>
In some cases, often due to features of the HTML host language or the accessibility API in question, an element or attribute's mapping differs from the corresponding ARIA mappings specified in
the [[core-aam-1.2]]. Where an HTML element or attribute does not have any default WAI-ARIA semantics, the applicable mapping for each platform <a class="termref">accessibility API</a> is
defined by this specification.
</p>
<p>
This document also adapts the [[[accname-1.2]]] specification for deriving the <a data-cite="accname-1.2/#dfn-accessible-name">accessible names</a> and
<a data-cite="accname-1.2/#dfn-accessible-description">accessible descriptions</a> of [[HTML]] elements, and provides accessible implementation examples for specific HTML elements and
features.
</p>
<p>
Users often access HTML content using assistive technologies that rely on platform <a class="termref">accessibility <abbr title="Application Programming Interface">API</abbr></a> to obtain and
interact with information from the page. This document is part of the following suite of accessibility API mapping specifications for content rendered by user agents:
</p>
<ul>
<li>[[[accname-1.2]]]</li>
<li>[[[core-aam-1.2]]]</li>
<li>HTML Accessibility API Mappings 1.0 (this specification)</li>
<!-- mathml aam link needs a shortcode, this doesn't appear to exit right now -->
<li>
<cite><a href="https://w3c.github.io/mathml-aam/">MathML Accessibility API Mappings 1.0</a></cite>
</li>
<li>[[[svg-aam-1.0]]]</li>
</ul>
<section id="intro_aapi">
<h3>Accessibility APIs</h3>
<p><a class="termref">Accessibility APIs</a> covered by this document are:</p>
<ul>
<li><abbr title="Microsoft Active Accessibility">MSAA</abbr> with <cite>IAccessible2 1.3</cite> [[IAccessible2]]</li>
<li><cite>User Interface Automation</cite> [[UI-AUTOMATION]]</li>
<li><cite>ATK - Accessibility Toolkit</cite> [[ATK]] and <cite>Assistive Technology Service Provider Interface</cite> [[AT-SPI]], referred to hereafter as "ATK/AT-SPI"</li>
<li><cite>macOS Accessibility Protocol</cite> [[AXAPI]]</li>
</ul>
<p>
If user agent developers need to expose information using other <a class="termref">accessibility APIs</a>, it is recommended that they work closely with the developer of the platform where
the <abbr title="application programming interface">API</abbr> runs, and assistive technology developers on that platform.
</p>
<p>For more information regarding <a class="termref">accessibility APIs</a>, refer to <a data-cite="core-aam-1.2/#intro_aapi">section 1.1 Accessibility APIs</a> of the [[[core-aam-1.2]]].</p>
</section>
</section>
<section id="conformance">
<p>The classification of a section as normative or non-normative applies to the entire section and all sub-sections of that section.</p>
<p>Normative sections provide requirements that authors, user agents, and assistive technologies MUST follow for an implementation to conform to this specification.</p>
<p>
Non-normative sections provide information useful to understanding the specification. Such sections may contain examples of recommended practice, but it is not required to follow such
recommendations in order to conform to this specification.
</p>
<section id="deprecated">
<h3>Deprecated</h3>
<p>There are currently no deprecated requirements.</p>
</section>
</section>
<section>
<h2>Mapping HTML to Accessibility APIs</h2>
<section id="mapping_general">
<h3>General Rules for Exposing WAI-ARIA Semantics</h3>
<p class="note">WAI-ARIA support was first introduced to HTML in [[HTML5]].</p>
<p>
Where an HTML element or attribute has default WAI-ARIA semantics, it MUST be exposed to the platform <a class="termref">accessibility APIs</a> in a way that conforms to
<a class="core-mapping" href="#mapping_general">General rules for exposing WAI-ARIA semantics</a> in the [[[core-aam-1.2]]].
</p>
</section>
<section id="mapping_conflicts">
<h3>Conflicts Between Native Markup Semantics and WAI-ARIA</h3>
<p>
Where the host language is [[HTML]], user agents MUST conform to
<a class="core-mapping" href="#mapping_conflicts">Conflicts between native markup semantics and WAI-ARIA</a> in the [[[core-aam-1.2]]].
</p>
</section>
<section id="mapping_nodirect">
<h3>Exposing HTML Features That Do Not Directly Map to Accessibility APIs</h3>
<p>
HTML can include features that are not supported by <a class="termref">accessibility APIs</a> at the time of publication. There is not a one to one relationship between all features and
platform <a class="termref">accessibility APIs</a>. When HTML roles, states and properties do not directly map to an <a class="termref">accessibility API</a>, and there is a method in the
API to expose a text string, user agents MUST expose the undefined role, states and properties via that method.
</p>
<p>
For HTML elements or attributes with default WAI-ARIA semantics, user agents MUST conform to
<a class="core-mapping" href="#mapping_nodirect">Exposing attributes that do not directly map to accessibility <abbr title="application programming interface">API</abbr> properties</a> in
the [[core-aam-1.2]].
</p>
</section>
<section>
<h3 id="minimum-role">Exposing HTML Features That Require a Minimum Role</h3>
<p>
A <dfn>minimum role</dfn> is the equivalent WAI-ARIA role an element will map to if the element does not have a more specific implicit role or platform role mappings, e.g., a non-generic
role. This can help ensure that users of assistive technologies get the best possible experience for commonly-used and valid HTML markup where otherwise a role would not be exposed.
</p>
<p>A minimum role is provided when all of the following conditions are true:</p>
<ul>
<li>the author has <strong>not</strong> specified a valid explicit WAI-ARIA role to the element, <strong>or</strong> the specified role is either `none`, `presentation`, or `generic`;</li>
<li>the element either has no implicit WAI-ARIA role or platform role mappings, or it has an implicit `generic` or `none` computed role;</li>
<li>and the author has specified attributes which require a minimum role mapping for the element.</li>
</ul>
<p>
The <a href="#html-attribute-state-and-property-mappings">HTML Attribute State and Property Mappings</a> section identifies the specific global attributes which would require an element map
to a minimum role.
</p>
<p>
When these conditions are met, the browser MUST expose an object using the mappings defined in CORE-AAM for the specified minimum role. If the element has multiple attributes specified which
require a minimum role be returned as the computed role for the element, prioritize the more specific role in the ARIA taxonomy.
</p>
</section>
<section>
<h3>HTML Element Role Mappings</h3>
<ul>
<li>
HTML elements with implicit WAI-ARIA role semantics MUST be mapped to platform <a class="termref">accessibility APIs</a> according to the identified WAI-ARIA role mapping as defined in the
[[core-aam-1.2]] specification.
</li>
<li>
"Not mapped" means the element does not need to be exposed via an <a class="termref">accessibility API</a>. This is usually because the element is not displayed as part of the user
interface. However, authors can force some of these elements to be rendered. For instance, by overriding user agent styles to render elements that would have been otherwise set to
`display: none`. In these cases, the user agent SHOULD map such elements to the role of <a class="core-mapping" href="#role-map-generic">`generic`</a>, unless other HTML features have been
specified which would require a more specific <a>minimum role</a> to be exposed.
</li>
<li>
Where an element is indicated as having "No corresponding (WAI-ARIA) role", or is mapped to the <a class="core-mapping" href="#role-map-generic">`generic`</a> role, user agents
MUST NOT expose the <a class="core-mapping" href="#ariaRoleDescription">`aria-roledescription`</a> property value in the <a class="termref">accessibility tree</a> unless the element has an
explicit, conforming `role` attribute value which [[WAI-ARIA-1.2]] does not prohibit the use of `aria-roledescription`.
</li>
<li>
Some HTML elements expose implicit WAI-ARIA roles depending on whether they have been provided an <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a>. How an element
participates in the computation of its own or another element's <a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a> and/or
<a data-cite="accname-1.2/#dfn-accessible-description">accessible description</a> is described in the
<a href="#accessible-name-and-description-computation">Accessible Name and Description Computation</a> section of this document.
</li>
</ul>
<h4 id="platform-api-mapping-requirements">Platform API mapping requirements</h4>
<ul>
<li>
When HTML elements do not have an exact or equivalent mapping to a valid, non-abstract <abbr title="Accessible Rich Internet Applications">WAI-ARIA</abbr> role, a unique `computedrole`
string has been specified to serve as the return value for interoperability testing purposes. For instance, the `video` element MAY be exposed with a `computedrole` of "`html-video`".
Authors MUST NOT use any `html-`prefixed computed role string in the role attribute (such as `html-video`). User Agents MUST ignore any abstract or invalid role token.
<div class="example">
<code> <video> <!-- computedrole returns 'html-video' --> <main role="html-video"> <!-- Author error. computed role returns 'main' --> </code>
</div>
</li>
<li>
<strong>IAccessible2:</strong>
<ul>
<li>All elements with accessible objects should implement the IAccessible, IAccessible2 and IAccessible2_2 interfaces.</li>
</ul>
</li>
<li>
<strong>UIA:</strong>
<ul>
<li>
When a <a data-cite="html/forms.html#category-label">labelable element</a> is referenced by a `label` element's `for` attribute, or a descendant of a `label` element, the labelable
element's UIA `LabeledBy` property points to the UIA element for the `label` element.
</li>
<li>
Elements mapped to the `Text` Control Type are not generally represented as <a class="termref" data-lt="accessible object">accessible objects</a> in the
<a class="termref">accessibility tree</a>, but are just part of the `Text` Control Pattern implemented for the whole HTML document. However, if they have any `aria-` attributes or an
explicit `tabindex` specified, elements mapped to the `Text` Control Type will be represented as <a class="termref" data-lt="accessible object">accessible objects</a> in the
<a class="termref">accessibility tree</a>.
</li>
</ul>
</li>
<li>
<strong>AXAPI:</strong>
<ul>
<li>User agents should return a user-presentable, localized string value for the Mac Accessibility AXRoleDescription.</li>
</ul>
</li>
</ul>
<h4 id="el-a">`a` <span class="el-context">(represents a hyperlink)</span></h4>
<table class="data" aria-labelledby="el-a">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`a`</a>
<span class="el-context">(represents a <a data-cite="html">hyperlink</a>)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-link">`link`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-a-no-href">`a` <span class="el-context">(no `href` attribute)</span></h4>
<table class="data" aria-labelledby="el-a-no-href">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`a`</a>
<span class="el-context">(no <a data-cite="html/links.html#attr-hyperlink-href">`href`</a> attribute)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-abbr">`abbr`</h4>
<table class="data" aria-labelledby="el-abbr">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`abbr`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">html-abbr</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="role"><span class="type">Roles:</span> `ROLE_SYSTEM_TEXT`; `IA2_ROLE_TEXT_FRAME`</div>
<div class="objattrs">
<span class="type">Object attributes:</span>
"abbr" attribute on the containing <a href="#el-td">`td`</a> if a single child, text content used as a value
</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="ctrltype"><span class="type">Control Type:</span> `Text`</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="role"><span class="type">Role:</span> `ATK_ROLE_STATIC`</div>
<div class="objattrs">
<span class="type">Object attributes:</span>
"abbr" attribute on the containing <a href="#el-td">`td`</a> if a single child, text content used as a value
</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="role"><span class="type">AXRole:</span> `AXGroup`</div>
<div class="subrole"><span class="type">AXSubrole:</span> `(nil)`</div>
<div class="roledesc"><span class="type">AXRoleDescription:</span> `"group"`</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-address">`address`</h4>
<table class="data" aria-labelledby="el-address">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`address`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-group">`group`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-area">`area` <span class="el-context">(represents a hyperlink)</span></h4>
<table class="data" aria-labelledby="el-area">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`area`</a>
<span class="el-context">(represents a <a data-cite="HTML">hyperlink</a>)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-link">`link`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-area-no-href">`area` <span class="el-context">(no `href` attribute)</span></h4>
<table class="data" aria-labelledby="el-area-no-href">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`area`</a>
<span class="el-context">(no <a data-cite="html/links.html#attr-hyperlink-href">`href`</a> attribute)</span>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td>
User agents MAY still expose an `a` element lacking the `href` attribute with a `link` role in the event an author specifies interactive behavior for the element. For example, if using
an <a data-cite="html/webappapis.html#event-handler-content-attributes">event handler attribute</a>.
</td>
</tr>
</tbody>
</table>
<h4 id="el-article">`article`</h4>
<table class="data" aria-labelledby="el-article">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`article`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-article">`article`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-aside-ancestorbodymain">`aside` (scoped to the `body` or `main` element)</h4>
<table class="data" aria-labelledby="el-aside-ancestorbodymain">
<tbody>
<tr>
<th>HTML Specification</th>
<td><a data-cite="HTML">`aside`</a> (scoped to the `body` or `main` element)</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-complementary">`complementary`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-aside">`aside` (scoped to a sectioning content element)</h4>
<table class="data" aria-labelledby="el-aside">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`aside`</a>
(scoped to a <a data-cite="HTML/dom.html#sectioning-content">sectioning content</a> element)
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>
<a class="core-mapping" href="#role-map-complementary">`complementary`</a> role if the <a>`aside`</a> element has an
<a data-cite="accname-1.2/#dfn-accessible-name">accessible name</a>. Otherwise, <a class="core-mapping" href="#role-map-generic">`generic`</a> role.
</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-audio">`audio`</h4>
<table class="data" aria-labelledby="el-audio">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`audio`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">html-audio</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="role"><span class="type">Role:</span> `ROLE_SYSTEM_GROUPING`</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="ctrltype"><span class="type">Control Type:</span> `Group`</div>
<div class="ctrltype"><span class="type">Localized Control Type:</span> `"audio"`</div>
<div class="general">
<b>Note:</b> If the <a data-cite="html/media.html#attr-media-controls">`controls`</a> attribute is present, UI controls (e.g., play, volume) are exposed as children of the
<a data-cite="HTML">`audio`</a> element in the <a class="termref">accessibility tree</a>, and mapped as appropriate for the type of control (e.g.,
<a class="core-mapping" href="#role-map-button">`button`</a> or <a class="core-mapping" href="#role-map-slider">`slider`</a>).
</div>
<div class="general">
Text objects associated with loading or error messages, and any UI control not currently displayed, MAY be present in the <a class="termref">accessibility tree</a> and marked as
hidden or off-screen.
</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="role"><span class="type">Role: </span> `ATK_ROLE_AUDIO`</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="role"><span class="type">AXRole:</span> `AXGroup`</div>
<div class="subrole"><span class="type">AXSubrole:</span> `AXAudio`</div>
<div class="roledesc"><span class="type">AXRoleDescription:</span> `"audio playback"`</div>
<div class="general">
<b>Note:</b> If the <a data-cite="html/media.html#attr-media-controls">`controls`</a> attribute is present, UI controls (e.g., play, volume) are exposed as descendants of an
<a class="termref">accessible object</a> with a role of <a class="core-mapping" href="#role-map-toolbar">`toolbar`</a>, and mapped as appropriate for the type of control (e.g.,
<a class="core-mapping" href="#role-map-button">`button`</a> or <a class="core-mapping" href="#role-map-slider">`slider`</a>).
</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-autonomous-custom-element">autonomous custom element</h4>
<table class="data" aria-labelledby="el-autonomous-custom-element">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">autonomous custom element</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>If the author assigned a conforming ARIA role using the `role` attribute, map to that role. Otherwise, the <a class="core-mapping" href="#role-map-generic">`generic`</a> role.</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-b">`b`</h4>
<table class="data" aria-labelledby="el-b">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`b`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Use WAI-ARIA mapping</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Use WAI-ARIA mapping</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td>Exposed by platform specific bold font weight text styles.</td>
</tr>
</tbody>
</table>
<h4 id="el-base">`base`</h4>
<table class="data" aria-labelledby="el-base">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`base`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td>No corresponding role</td>
</tr>
<tr>
<th><a data-cite="core-aam-1.2/#roleMappingComputedRole">Computed Role</a></th>
<td class="role-computed"><div class="general">Not mapped</div></td>
</tr>
<tr>
<th>
<a href="https://msdn.microsoft.com/en-us/library/dd373608%28v=VS.85%29.aspx">MSAA</a> + <a href="http://accessibility.linuxfoundation.org/a11yspecs/ia2/docs/html/">IAccessible2</a>
</th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://msdn.microsoft.com/en-us/library/ms726297%28v=VS.85%29.aspx">UIA</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://gnome.pages.gitlab.gnome.org/atk/">ATK</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<tr>
<th><a href="https://developer.apple.com/reference/appkit/nsaccessibility">AX</a></th>
<td>
<div class="general">Not mapped</div>
</td>
</tr>
<!-- <th><a href="#accessible-name-and-description-computation">Naming Algorithm</a></th> -->
<tr>
<th>Comments</th>
<td></td>
</tr>
</tbody>
</table>
<h4 id="el-bdi">`bdi`</h4>
<table class="data" aria-labelledby="el-bdi">
<tbody>
<tr>
<th>HTML Specification</th>
<td>
<a data-cite="HTML">`bdi`</a>
</td>
</tr>
<tr>
<th>[[wai-aria-1.2]]</th>
<td><a class="core-mapping" href="#role-map-generic">`generic`</a> role</td>
</tr>