.custom-iview-split{
    .ivu-split-trigger-vertical {
        width: 1px;
        background-color: var(--border-color);
    }

    .ivu-split-trigger {
        border: none;
    }

    .ivu-split-trigger-bar-con.vertical {
        left: -1px;
    }

    .ivu-split-trigger-vertical .ivu-split-trigger-bar {
        width: 3px;
    }
}