body {
  background-color: white;
  color: #73777A;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
}
#rahmen {
  position: absolute;
  width: 877px;
  height: 580px;
  left: 50%;
  top: 50%;
  margin: -281px 0 0 -439px;
}