Check this Updated jsFiddle
If you do not want that external link then why you not remove "Exclude" link, Remove this HTML from your existing Code,
<li><a href="#exclude" class="exclude">Exclude</a>
</li>
Updated jsFiddle
HTML
<div id="exclude"></div>
CSS
#exclude {
background-color: yellow;
height: 100%;
width: 100%;
}