el-table设置固定高度

   :row-class-name="'rowStyle'"//el-table标签里
   :row-style="{ height: '48' }" //el-table标签里
  /deep/ .admin-table .rowStyle {
    height: 48px;
    line-height: 48px;
  }
  /deep/ .admin-table .el-table td {
    padding: 0;
  }