.poster-main{position: relative;width: 900px;height: 270px}
.poster-main a,.poster-main img{display:block;}
.poster-main .poster-list{width: 900px;height: 270px}
.poster-main .poster-list .poster-item{position: absolute;left: 0px;top: 0px}
.poster-main .poster-btn{position: absolute;cursor: pointer;height: 100%;width:100px;top: 0px;z-index: 10;opacity: 0.5;transition:.4s ease;}
.poster-main .poster-btn:hover{opacity:0.8;}
.poster-main .poster-prev-btn{ left: 0px; background: url("../images/shzr/btn_l.png") no-repeat center center; background-color: #000 }
.poster-main .poster-next-btn{right: 0px;background: url("../images/shzr/btn_r.png") no-repeat center center;background-color:#000}
.xwbt .jz{
    display: table-cell;
    vertical-align: middle;
}
.xwbt{display: table;height: 92px;background-color: rgba(0,0,0,0.8);width: 100%;bottom: 0px;position: absolute;}
.xwbt .jz span{color: #fff;line-height: 28px;display: block;padding: 0px 40px;}
.xwbt .jz .rq{font-size: 14px;}
.xwbt .jz .bt{font-size: 16px;}