.teacher {
  width: 300px !important;
  font-size: 14px;
  color: #606266;
  margin-top: -10px;
}
.teacher .vue-treeselect__control {
  height: 50px;
  border: none;
}
.vue-treeselect__placeholder, .vue-treeselect__single-value {
  line-height: 50px
}