DIV#mapDrag {
  width: 2500px;
  height: 2134px;
  background-image: url('../kaarten/fiets/ozv_xxl.jpg');
}

DIV#mapContainerThumb {
   width: 250px;
  height: 213px;
  background-image: url('../kaarten/fiets/ozv_thumb.jpg');
  cursor: hand;
  cursor: pointer;
}