body {
  background-color: #e1e1e1;
  margin: 0px;
}

div#popflash {
  width: 800px;
  height: 600px;
  position:absolute;
  top:50%;
  left:50%;
  background-image:url("../img/swfbackground.jpg");
  background-position: 1px 1px;
  margin-left:-400px;
  margin-top:-300px;

}