div,ul,li{margin:0;padding:0;}
.center {margin-left:auto; margin-right:auto; text-align:center; width:100%;}
#sponsor_ads {background:url(/images/sprites_homepage.png);}
#sponsor_ads {width:550px; height:100px; background-position:-250px -306px; margin-top:20px; margin-bottom:20px;}
#sponsor_ads ul {margin:0 0 0 15px;}
#sponsor_ads ul li {list-style:none; width:120px; height:60px; float:left; margin:21px 5px;}