body {
  background-image: url(/background.jpg);
  background-repeat: repeat-x;
  background-color: white;
  margin: 0;
  margin-top: -1px;
}
a {
  color: white;
  text-decoration: none; 
}
#page_header {
  width: 600px;
  height: 100px;
  border: 0;
  background-image: url(/aqualgidus.jpg);
  margin: 0 auto;
}
#page_header span {
  visibility: hidden;
}