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From 2013.igem.org

ul.sdt_menu{ margin:0; padding:0; list-style: none; font-family:"Comic Sans MS", cursive; font-size:12px; width:1020px; } ul.sdt_menu a{ text-decoration:none; outline:none; } ul.sdt_menu li{ float:left; width:150px; height:85px; position:relative; cursor:pointer; } ul.sdt_menu li > a{ position:absolute; top:0px; left:0px; width:150px; height:85px; z-index:12; background:transparent no-repeat bottom right; -moz-box-shadow:0px 0px 2px #000 inset; -webkit-box-shadow:0px 0px 2px #000 inset; box-shadow:0px 0px 2px #000 inset; } ul.sdt_menu li a img{ border:none; position:absolute; width:0px; height:0px; bottom:0px; left:85px; z-index:100; -moz-box-shadow:0px 0px 4px #000; -webkit-box-shadow:0px 0px 4px #000; box-shadow:0px 0px 4px #000; } ul.sdt_menu li span.sdt_wrap{ position:absolute; top:25px; left:0px; width:150px; height:60px; z-index:15; } ul.sdt_menu li span.sdt_active{ position:absolute; background:#111; top:85px; width:150px; height:0px; left:0px; z-index:14; -moz-box-shadow:0px 0px 4px #000 inset; -webkit-box-shadow:0px 0px 4px #000 inset; box-shadow:0px 0px 4px #000 inset; } ul.sdt_menu li span span.sdt_link, ul.sdt_menu li span span.sdt_descr, ul.sdt_menu li div.sdt_box a{ margin-left:10px; text-transform:uppercase; text-shadow:1px 1px 1px #000; } ul.sdt_menu li span span.sdt_link{ color:#fff; font-size:20px; float:left; clear:both; } ul.sdt_menu li span span.sdt_descr{ color:#fcf16e; float:left; clear:both; width:155px; /*For dumbass IE7*/ font-size:10px; letter-spacing:1px; } ul.sdt_menu li div.sdt_box{ display:block; position:absolute; width:150px; overflow:hidden; height:150px; top:85px; left:0px; display:none; background:#000; } ul.sdt_menu li div.sdt_box a{ float:left; clear:both; line-height:30px; color:#fcf16e; } ul.sdt_menu li div.sdt_box a:first-child{ margin-top:5px; } ul.sdt_menu li div.sdt_box a:hover{ color:#fff; }