.item {
  margin-bottom: 3px;
  padding-bottom: 3px;
  border-bottom: 1px solid #E0E0E0;
}

.item:hover {
  background-color: #F0F8FF;
}

.treeNode:hover {
  cursor: pointer;
  color: blue;
}

.childrenContainer {
  margin-left: .4em;
  padding-left: .4em;
  border-left: 1px dotted blue;
}