#wrap {position:relative;margin:0 auto;width:100%;}
#wrap .banner {position:absolute;top:0;width:100%;opacity:0;transition: opacity 2s;}
#wrap .tab{position:absolute;bottom:10px;left: calc(50% - 22px)}
#wrap .tab span{display: inline-block;width:6px;height:6px;margin:3px;background:white;border-radius:50%;cursor: pointer;}
#wrap .tab span.on{background:#ffc20e;}
#wrap .tab span:hover{background:#ffc20e;}
#wrap .prev {position:absolute;left:20px;bottom:20px;width:41px;height:69px;background: url("http://resfile.dongzouxizou.com/home/icon-slides.png");cursor:pointer;}
/*#wrap .prev img {position: absolute;clip:rect(0 41px 0 82px);width:41px;height:69px;}*/
#wrap .next {position:absolute;left:80px;bottom:20px;width:41px;height:69px;background: url("http://resfile.dongzouxizou.com/home/icon-slides.png") 123px;cursor:pointer;}
.lunboWH{
    width: 100%;
}
.lunbo-down-arrows {
    position: absolute;
    right: 94px;
    bottom:-31px;
    width: 30px;
}
.lunbo-down-arrows-box{
    position: relative;
}