something like this: body {position: relative; margin: 0; padding: 0;}
div#links {position: absolute; top: 270px; left: 30;
width: 155px; height: auto; z-index: 10;}
div#links a {display: block; text-align: center;
font: bold 13px Verdana, sans-serif;
padding: 5 0; margin: 0 0;
border: solid #000; border-width: 1 1 0 4;
text-decoration: none; color: #000;
background: #eff; border-left: 4px solid purple;}
<!-- above sets up location, appearance of links in a div of id=links then below sets up appearance of hover state for these links -->
div#links a:hover {color: #909; background: #9af;
border-left: 3px solid red;
text-decoration: underline;}
with the comment in their the div#links a:hover was ignored by firefox ... ie was fine. this was in windows.
