css-去除element table表格的最后一条线和其他border线

 ::v-deep .el-table td.el-table__cell,
  ::v-deep .el-table th.el-table__cell.is-leaf {
    border: none;
  }
  ::v-deep .el-table--border::after  , ::v-deep.el-table::before{
    background-color: transparent;
}


::v-deep .el-table__fixed::before {
  width: 0;
}