.treeView {
  margin: 0;
  padding: 0;
}

.treeView, .treeViewNested {
  list-style: none;
}

.treeViewCaret {
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.treeViewCaret::before {
  content: "\25B6";
  color: black;
  display: inline-block;
  margin-right: 5px;
}

.treeViewCaretDown::before {
  -ms-transform: rotate(90deg);
  -webkit-transform: rotate(90deg);
  transform: rotate(90deg);  
}

.treeViewNested {
  display: none;
}

.treeViewActive {
  display: block;
}