page.
                </li>
                <li>
                  Only one <code>menuitem</code> in the <code>menubar</code> has <code>tabindex=&quot;0&quot;</code>.
                </li>
                <li>
                  When the page loads, the first item in the menubar has <code>tabindex=&quot;0&quot;</code>.
                </li>
                <li>
                  Focus is managed using <a href="../../#kbd_roving_tabindex">roving tabindex</a>.
                </li>
              </ul>
        