.poster-main{position: relative;}
.poster-main a,.poster-main img{display:block;}
.poster-main .poster-list{}
.poster-main .poster-list .poster-item{position: absolute;left: 0px;top: 0px}
.poster-main .poster-btn{position: absolute;height: 100%;width:100px;top: 0px;z-index: 10;opacity: 0.3;}
.poster-main .poster-prev-btn{left: 0px;background: url("../../image/btn_l.png") no-repeat center center; }
.poster-main .poster-next-btn{right: 0px;background: url("../../image/btn_r.png") no-repeat center center;}