.duilian{top: 20px; position: absolute; overflow: hidden; display: none;z-index: 900}
.duilian_con{position:relative;}
.duilian_left{left:0;}
.duilian_right{right:0;}
.duilian_close_1{position: absolute;top:0;right:0;text-indent:-999em;z-index:999;width:20px;height:20px;background:url(about:blank);}
.duilian_close_2{position: absolute;top:0;right:0;text-indent:-999em;z-index:999;width:30px;height:30px;background:url(about:blank);}