title: Firefox and <li> vertical alignment
body: <p>I'm trying to make a horizontal menu bar that's flush with the top of the screen. It works fine in Chrome, but in Firefox, the LIs are half cut off.</p>
  
  <p><a href="http://jsfiddle.net/efq2u/1/" rel="nofollow">Here's a fiddle</a>.</p>
  
  <p>How do I get it to work properly?</p>