#GB_overlay {
  background-color: #eee;
  position: fixed;
  margin: auto;
  top: 0;
  left: 0;
  z-index: 100;
  width: 100%;
  height: 100%;
  opacity: 0.6;
  filter: alpha(opacity=60);
  zoom: 1;
}

#GB_window {
  position: absolute;
  top: 140px;
  left: 0;
  overflow: hidden;
  z-index: 150;
  zoom: 1;
  border-top: 1px solid #888;
  border-right: 2px solid #555;
  border-bottom: 2px solid #555;
  border-left: 1px solid #888;
  background-color: #fff;
}

#GB_frame {
  border: 0;
  overflow: hidden;
  width: 100%;
  height: 350px;
}