#box {width:500px; height:276px; background:#fff;  position: relative; overflow: hidden;z-index:5000;}
#list {position:absolute; left:0; top:0;}
#list li {width:500px; height:276px; cursor: pointer;}
#list li img{width:500px; height:276px; cursor: pointer;}
#num {position: absolute; right:10px; bottom:10px;}
#num li {width:16px; height:16px; float:left; margin-right:2px; color:#fff; cursor: pointer; font-size: 12px; font-family:'Arial'; line-height:16px; text-align: center; border:1px solid #fff;}
.active {background:#ff6600;}