.wrapper {width:100%; margin:2px auto 0 auto; background:#F1F1F1;}
#focus {width:100%; height:448px; overflow:hidden; position:relative;}
#focus ul { height:448px; position:absolute;}
#focus ul li{float:left; width:1920px; height:448px; position:relative; background:#f1f1f1;}
#focus ul li div {position:absolute; overflow:hidden;}
#focus .btn {position:absolute; width:100%; height:10px; padding:15px 10px; right:0; bottom:0; text-align:center;left:400px;}
#focus .btn span {display:inline-block; _display:inline; _zoom:1; width:30px; 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:174px; background:url(sprite.png) no-repeat 0 0; cursor:pointer;}
#focus .pre {left:0;}
#focus .next {right:0; background-position:right top;}