A Href Links Not Clickable Or Highlightable

I'm not completely sure as to why my a href links aren't working...At one point in time it was working, I did some research on the Z-Index but that doesn't seem to be the problem,

Solution 1:

Change your give your links a class of link and then set that class to have a z-index of 9999;

Example:

<li>
<a class="links" href="#">About</a>
</li>

.links {
z-index:9999;
}