#un-lobby:before{display:none}ul.navtab{display:inline-block;width:900px;padding:0;margin:10px auto;border-bottom:1px solid #ffc722}ul.navtab li{float:left;display:inline-block;height:38px;padding:0 5px;margin-right:10px;color:#fff;font-size:14px;font-family:'Microsoft JhengHei';line-height:38px;background:#272727}ul.navtab li.tab,ul.navtab li:hover{color:#272727;background:#ffc722}ul.discount{position:relative;z-index:3;width:900px;margin:0 auto}ul.discount>li:first-child{height:179px;margin-bottom:5px;cursor:pointer}ul.discount>li.content{background:#a6a6a6;padding:20px;text-align:left}ul.discount li img{width:100%}