#select_box{margin:0 auto;height:160px;background:url(../images/select_boxbg.jpg) center no-repeat;width:100%}.banner img,.img img{width:100%;vertical-align:top}.img .item_last{position:relative}.img a{position:absolute;display:block;left:50%;width:28.43%;height:28.61%;background:url(../images/daren/ico_shelter.png)}.img a.item1{top:28.16%;margin-left:-31.5%}.img a.item2{top:28.16%;margin-left:3.14%}.img a.item3{top:59.79%;margin-left:-31.5%}.img a.item4{top:59.79%;margin-left:3.14%}