#nav_top {
  background: url(/static/backgrounds/Bilder/grau_01.jpg?1000) no-repeat;
  width: 900px;
  height: 147px;
}

#nav_bottom {
  background: url(/static/backgrounds/Bilder/grau_02.jpg) no-repeat;
  width: 900px;
  height: 33px;
}

#menu {
  border: solid orange 2px;
}