Testcase:
<style>
    #bigpkgtable {
        text-align: center;
        margin-top: 140px;
    }
    #header {
        position: fixed;
        background: #000000;
        width: 99%;
        height: 120px;
    }
</style>
<div id="header"></div>
<table id="bigpkgtable">
</table>

Confirmed on trunk 437796

Seems to be resolved in actual trunk. (rev. 797569)

The background when clicking on an item seems correct (it's buggy under FF3.0b5, can't compare)

The alignment problems between names and dates come from the stylesheet :

#pkglistsingle li span.datum {
    float: right;
    margin-left: -17em;
    margin-top: -1.3em;
}

replace -1.3 with 0 and all will be displayed correctly.

 

Works for 4.0.3

closing as it works for me