.duilian{ bottom:50px;position:absolute; width:100px; height:400px;display:none;}
 .duilian_left{ left:2px;}
 .duilian_right{right:2px;}
 .duilian_con{ width:100px; height:400px; overflow:hidden; background:#ccc;}
 .duilian_close{ width:18px; height:18px; line-height:18px; text-align:center; display:block; font-size:12px; color:#555555; text-decoration:none; border:#555 1px solid; float:left;cursor:pointer}
  .duilian_close a{ text-decoration:none;}