text area.
          Each item in the menubar identifies a category of text formatting actions that can be executed from its submenu.
          The submenus demonstrate <code>menuitemradio</code> and <code>menuitemcheckbox</code> elements.
        </p>
        <p>Similar examples include:</p>
        <ul>
          <li><a href="../../toolbar/examples/toolbar.html">Toolbar Example</a>: A text formatting toolbar that uses roving tabindex to manage focus and contains several types of controls, including toggle