title: CSS issue: Top border not displaying in IE
body: <p>On my site, I'm using the JavaScript Tabifier to create tabs<br /></p>
  
  <p>In Firefox, the tabs have a top border (as desired).</p>
  
  <p>In IE 6/7, the tabs do not have a top border, even though I have <code>border-top</code> defined for the appropriate CSS property (<code>ul.tabbernav li a</code>).</p>
  
  <p>Any CSS ideas as to why Firefox has the top border but IE does not?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>Per comment below, the page now w3c validates BUT I am still experiencing the CSS issue as originally outlined.</p>
  
  <p><strong>UPATE 2</strong></p>
  
  <p>Yes, I'm aware IE 6/7/8 does not support border-radius but I have removed that property and explicitly defined <code>border-top</code> and the border-top is still not displaying for IE 6/7.</p>