port for setting focus on each <a href="types.html#InterfaceSVGElement">SVG Element</a> in the DOM</li>
      <li>Script support for acquiring the <a>'tabindex'</a> attribute
on each <a href="types.html#InterfaceSVGElement">SVG Element</a> in the DOM</li>
      <li>Script support for the HTML activeElement property in the <a href="struct.html#InterfaceDocumentExtensions">Document interface</a></li>
    </ul>
  </dd>
</dl>
<dl>
 <dt><span class="gl"><a href="https://www.w3.org/TR/WCAG21/#navigation-mechanism