#pop {
   z-index:2;
   position:absolute;

   text-align:top;
   background:#eeeeee;
}
#cerrar {
   float:right;
   margin-right:5px;
   cursor:pointer;
   font:Verdana, Arial, Helvetica, sans-serif;
   font-size:12px;
   font-weight:bold;
   color:#000000;
   background-color:#eeeeee;
   width:60px;
   position:relative;
   margin-top:-1px;
   text-align:center;
}