.tab { width:750px;}
 .tab_menu { clear:both;}
 .tab_menu li { float:left; text-align:center; cursor:pointer; list-style:none; padding:0px 6px; margin-right:10px; height:25px; background:#E0E0E2; border:1px solid #C7C7CF;}
 .tab_menu li.hover { background:#E0E0E2;}
 .tab_menu li.selected { color:#FFF; background:#A2BBD1;}
 .tab_box { clear:both;}
 .hide{display:none;}