el-tree 横向超长问题

<el-tree
v-if="unitsDialog"
ref="orgnTree"
:data="treeData"
:props="defaultProps"
@node-click="clickTree"
:default-expanded-keys="idArr"
:highlight-current="true"
node-key="id"
check-on-click-node
check-strictly
:expand-on-click-node="true">
</el-tree>

增加css样式(此方法混动条会动态的增加或删除)

.el-tree {
 overflow-x: auto;
}
.el-tree--highlight-current .el-tree-node>.el-tree-node__children {
  overflow: inherit;
}