Question

I’m checking in Firefox 3.6

Why 2nd level links are not clickable in this tab menu.

alt text http://shup.com/Shup/383239/11061405615-My-Desktop.png

live example here : http://jsbin.com/upeka4/5

these are clickable if disable the css

Answer 1

Probably because the z-index definition here:

ul.level2  {
background:none repeat scroll 0 0 #F3F8C6;
border:1px solid #EABF4A;
left:0;
padding:6px;
position:absolute;
top:30px;
width:463px;
z-index:-1; <------------------------ there
}