/*基本样式*/
.poster-main{
	width: 980px;
	height: 265px;
	position: relative;
}
.poster-main a,.poster-main img{
	display:block;
}
.poster-main .poster-list{
	width: 980px;
	height: 265px;
}
.poster-main .poster-list .poster-item{ 
	width: 315px;
	height: 265px;
	position:absolute;
	left:0;
	top:0;
}
.poster-main .poster-btn{ 
	position:absolute;
	top:0;
	z-index:10; 
	cursor:pointer;  
}
.poster-main .poster-prev-btn{
	left:0; 
	background: url(btn_l.png) no-repeat center center;
}
.poster-main .poster-next-btn{
	right:0; 
	background: url(btn_r.png) no-repeat center center;
}