.cms-berlitz-tree-all, .cms-berlitz-tree-all a {
  background-color: #007;
  color: white;
  empty-cells: show;
}
.cms-berlitz-tree-some, .cms-berlitz-tree-some a {
  background-color: #9af;
  color: black;
  empty-cells: show;
}
.cms-berlitz-tree {
  width: 400px;
}
.cms-berlitz-tree table {
  width: 100%;
}
.cms-berlitz-tree .cms-berlitz-tree-expand {
  width: 100%;
}