.popup{position:absolute;display:block;overflow:hidden;left:-300px;font-family:arial,verdana,helvetica,lucida,sans-serif;font-size:90%;text-align:left;border:1px solid black;padding:2px;background-color:lightyellow;visibility:hidden;z-index:100;filter:progid:DXImageTransform.Microsoft.Shadow(color=gray,direction=135,strength=2)}.arrow{position:absolute;height:15px;width:8px;left:-300px;visibility:hidden;z-index:101}