dx-element-ui/style/index.scss

// DxTableList 
.container-table-list {

    /* #region 首列复选框 */
    .el-table th.el-table__cell>.cell {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .el-table th>.cell .el-checkbox {
        margin-left: 0;
    }

    .el-table-column--selection .cell {
        padding-right: 10px;
    }

    /* #endregion */

    // switch
    .el-switch .el-switch__label {
        position: absolute;
        z-index: 1;
        font-weight: bold;
        margin: 0;
        display: none;

        &.is-active {
            color: #fff;
        }

        &.el-switch__label--left {
            right: 6px;
        }

        &.el-switch__label--right {
            left: 6px;
        }

        &.is-active {
            display: block;
        }

        span {
            font-size: 12px;
        }
    }
}