fieldset,img{border:0;}
address,caption,cite,code,dfn,em,strong,th,var{font-style:normal;font-weight:normal;}
ol,ul{list-style:none;}
caption,th{text-align:left;}


.caroursel{margin: 0 auto;margin-top: 100px}
.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;height: 40px;width:40px;top: 115px;z-index: 10;cursor: pointer}
.poster-main .poster-prev-btn{left: 70px;background: url("../images/btn_l.png") no-repeat center center; }
.poster-main .poster-next-btn{right: 70px;background: url("../images/btn_r.png") no-repeat center center;}