#wrapper_site { height: 100%; background: url(../../img/main_top_bg.png) no-repeat center -20px #000; } 
#top_main { margin:30px auto 50px; overflow: hidden; width: 659px; text-align: center; }
#main_contents { float: none; width: auto; }
#list-topics { margin-bottom: 29px; overflow: hidden; width: 960px; font-size: 11px; }
#list-topics h2 { margin: 0 0 20px; width: 114px; height: 11px; background: url(../img/title_information.png) no-repeat right top; text-indent: -9999px; }
#list-topics ul { margin: 0 -40px 0 0; padding: 0; overflow: hidden; background: url(../img/bg_topics.gif) repeat-y 480px top;  list-style: none; }
.lt-ie7 #list-topics ul { zoom: 1; }
#list-topics li { margin: 0 20px 5px 0; float: left;  width: 480px; white-space: nowrap; }
#list-topics dl { margin: 0; } 
#list-topics dt {float: left; }
#list-topics dd { margin-left: 60px; }