#focus{width:100%;height:305px; margin:0 auto; overflow:hidden;position:relative; background:#ffffff;}
#focus ul{height:305px;position:absolute;}
#focus ul li{float:left;width:980px;height:305px;overflow:hidden;position:relative;background:#000;}
#focus ul li div{position:absolute;overflow:hidden;}
#focus .btnBg{position:absolute;width:980px;height:20px;left:0;bottom:0;background:#000;}
#focus .btn{position:absolute;width:950px;height:10px;padding:5px 10px;right:0;bottom:0;text-align:right;}
#focus .btn span{display:inline-block;_display:inline;_zoom:1;width:50px;height:10px;_font-size:0;margin-left:10px;cursor:pointer;background:#fff;}
#focus .btn span.on{background:#fff;}
#focus .preNext{width:45px;height:100px;position:absolute;top:90px;background:url(/img/sprite.png) no-repeat 0 0;cursor:pointer;}
#focus .pre{left:0;}
#focus .next{right:0;background-position:right top;}
#focus img{ width:100%;}

#picw { width:980px; height:305px; margin:10px auto 15px; overflow:hidden; }