.ad-right-tail, .ad-left-tail{ 
            display:block; 
            border:1px dashed #ccc; 
            background:#fafafa; 
            width:160px;
            height:600px;
        }
        #ad-right-rail, .ad-right-tail .adtest{
            top: 0px;
            right: 0px;  
        }
        .adtest{
            position: absolute;
            z-index: 100;
        }