.sub_nav{width:663px;height:25px;bottom:0px;position:absolute;color:#999999;z-index:200;}.sub_no{height:25px;float:right;}.sub_noli{display:block;width:25px;height:25px;float:left;overflow:hidden;line-height:25px;vertical-align:middle;text-align:center;background:#000000;filter:alpha(Opacity=70);Opacity:0.7;font-