chromium/content/test/data/accessibility/aria/aria-tablist.html

<!--
@MAC-ALLOW:AXRoleDescription
@WIN-ALLOW:xml-roles*
@WIN-ALLOW:IA2_STATE_HORIZONTAL
@WIN-ALLOW:level*
@BLINK-ALLOW:hierarchicalLevel*
@BLINK-ALLOW:horizontal
@AURALINUX-ALLOW:horizontal
@AURALINUX-ALLOW:vertical
@AURALINUX-ALLOW:posinset*
@AURALINUX-ALLOW:setsize*
@BLINK-ALLOW:setSize*
@BLINK-ALLOW:posInSet*
-->
<!DOCTYPE html>
<html>
<body>
  <div role="tablist">
    <div role="tab">Tab 1, level 1</div>
    <div role="tab">Tab 2, level 1</div>
    <ul role="tablist">
      <li role="tab">Tab 1, level 2</li>
      <li role="tab">Tab 2, level 2
        <ul role="tablist">
          <li role="tab">Tab 1, level 3</li>
        </ul>
      </li>
    </ul>
    <div role="tab">Tab 3, level 1</div>
  </div>

  <style>
    li {
      list-style-type: none;
    }
  </style>
</body>
</html>