el-tree 解决横向滚动条和纵向滚动条问题

::v-deep .el-tree-node > .el-tree-node__children {
	overflow: visible;
}

添加此样式即可出现elment横向滚动条

此样式是去除默认横向滚动条

::v-deep .custom-scroll .el-scrollbar__wrap {

  overflow-x: hidden !important;

}