#clearfix { width:30%; margin-top: 5px;height: 275px; width: 255px; left: 50%; margin-left: 110px; *margin-top: 0px; *margin-left: 110px; position: absolute;}

#pop_up {
 width:30%;
  position: absolute;
  top: 28%; 
  left: 40%;
  height: 700px; 
  width: 850px; 
  margin-top: -100px; 
  margin-left: -300px; 
  /* background: #FF0000; */
  z-index: 1000; 
  overflow: auto;


}