#focus{width:1180px;height:280px;padding-top:10px;box-sizing:border-box;margin:0 auto;position:absolute;overflow:hidden;} 
#focus ul{width:1135px;margin:auto;padding-left:30px;} 
#focus ul li{width:322px;height:250px;box-sizing:border-box;float:left;overflow:hidden;margin:0 28px;} 
#focus .btn{position:absolute;width:1200px;height:10px;padding:5px 10px;right:0;bottom:0;text-align:right;} 
#focus .btn span{display:inline-block;_display:inline;_zoom:1;width:25px;height:10px;_font-size:0;margin-left:5px;cursor:pointer;background:#fff;} 
#focus .btn span.on{background:#fff;} 
#focus .prenext{width:45px;height:100px;position:absolute;top:90px;background:url(/uploads/image/wtnimg/sprite.png) no-repeat 0 0;cursor:pointer;} 
#focus .pre{left:0;} 
#focus .next{right:0;background-position:right top;}