.header-tree-select {
  width: 300px
}

.header-tree-select *{
  color: #fff;
  font-size: 1rem;
}

.header-tree-select{
  width: 300px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background-color: rgba(0, 0, 0, 0.3);
}

.header-tree-select:hover{
  border: 1px solid rgba(255, 255, 255, 0.8);
  background-color: rgba(0, 0, 0, 0.5);
}