.banner{width:100%;height:750px;overflow:hidden;position:relative;font-size:0}
.b-img{height:500px;position:absolute;left:0;top:0}
.b-img a{display:block;height:750px;float:left}
.b-list{height:50px;padding-top:700px;position:relative;margin:0 auto;z-index:1}
.b-list span{display:block;cursor:pointer;width:14px;height:14px;border-radius:50%;border:3px solid #fff;float:left;margin:0 5px;_margin:0 3px}
.b-list .spcss{border:3px solid #8604ab}
.bar-left{position:absolute;z-index:1;display:block;width:100px;height:100%;left:0;background:0 0;top:0}
.bar-right{position:absolute;z-index:1;display:block;width:100px;height:100%;right:0;background:0 0;top:0}
.bar-left em{display:block;width:50px;height:100px;background:url(../arrow.png) 0 0 no-repeat;margin:0 auto;margin-top:125px}
.bar-right em{display:block;width:50px;height:100px;background:url(../arrow.png) -50px 0 no-repeat;margin:0 auto;margin-top:125px}
.bar-left .emcss{background-position:0 -100px}.bar-right .emcss{background-position:-50px -100px}