#GB_overlay {
  background: #000;
  position: absolute;
  margin: auto;
  top: 0;
  left: 0;
  z-index: 100;
  width:  100%;
  height: 100%;
  display: none;
}

#GB_window {
  background-color: #fff;
  top: 10px;
  left: 0px;
  position: absolute;
  border: 5px solid #aaa;
  overflow: auto;
  width: 600px;
  height: 650px;
  z-index: 1000;
  display:none;
}

#GB_frame {
  background: transparent url('https://www.terminland.de/greybox/ajax-loader.gif') no-repeat scroll center 50%;
  border: 0;
  overflow: auto;
  width: 580px;
  height: 550px;
  margin: 15px;
}

#GB_caption {
  font: 12px bold helvetica, verdana, sans-serif;
  color: #fff;
  background: #888;
  padding: 2px 0 2px 5px;
  margin: 0;
  text-align: left;
}

#GB_window img {
  position: absolute;
  top: 2px;
  right: 5px;
  cursor: pointer;
  cursor: hand;
}