.el-tree-node__content>span:last-child {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    padding-right: 8px;
      .el-tag el-tag--danger{
          padding:0 2px;
          height:18px;
          line-height: 16px;
      }
  }
  .el-tree-node__content .el-tag{
      padding:0 2px;
      height:18px;
      line-height: 12px;
  }