.banner{height:490px;overflow:hidden;position: relative;}
.banner .d1{width:100%;height:490px;display:block;}
.banner .d2{width:100%;clear:both;position:absolute;z-index:100;left:0px;bottom:35px;}
.banner .d2 ul{float:left;position:absolute;left:50%;top:0;margin:0 0 0 -96px;display:inline;}
.banner .d2 li{width:17px;height:15px;overflow:hidden;cursor:pointer;background:url(img1.png) no-repeat center;float:left;margin:0 3px;display:inline;}
.banner .d2 li.nuw{background:url(img1_1.png) no-repeat center;}