.picScrollbg{margin:0 auto;height:115px;}
.picScrollw{margin:0 auto;width:1160px;overflow:hidden;position: relative; }
.picScroll{width:1142px;overflow:hidden;}

.picScroll .prev{position: absolute;z-index:100;width:15px;height:30px;margin-top: -72px;background:url('../images/icon_all.png') no-repeat;background-position: -150px -140px;cursor:pointer;}

.picScroll .next{position: absolute;z-index:100;right: 4px;width:15px;height:30px;margin-top: -72px;background:url('../images/icon_all.png') no-repeat;background-position: -170px -140px;cursor:pointer;}

.picScroll ul{overflow:hidden;zoom:1}
.picScroll ul li{float:left;overflow:hidden;}