tombol yang dapat diakses keyboard di Navbar
<div class="menu_button">
<button id="menubutton"
aria-haspopup="true"
aria-controls="menu2">
WAI-ARIA Quick Links
</button>
<ul id="menu2"
role="menu"
aria-labelledby="menubutton">
<li role="none">
<a role="menuitem" href="https://www.w3.org/">
W3C Home Page
</a>
</li>
<li role="none">
<a role="menuitem" href="https://www.w3.org/standards/webdesign/accessibility">
W3C Web Accessibility Initiative
</a>
</li>
<li role="none">
<a role="menuitem" href="https://www.w3.org/TR/wai-aria/">
Accessible Rich Internet Application Specification
</a>
</li>
<li role="none">
<a role="menuitem" href="https://www.w3.org/TR/wai-aria-practices/">
WAI-ARIA Authoring Practices
</a>
</li>
<li role="none">
<a role="menuitem" href="https://www.w3.org/TR/wai-aria-implementation/">
WAI-ARIA Implementation Guide
</a>
</li>
<li role="none">
<a role="menuitem" href="https://www.w3.org/TR/accname-aam-1.1/">
Accessible Name and Description
</a>
</li>
</ul>
<script type="text/javascript">
window.onload=function() {
var menubutton = new Menubutton(document.getElementById('menubutton'));
menubutton.init();
</script>
</div>
Healthy Horse