.aui-split-wrapper {
    position: relative;
    display: flex;
    width: 100%;
    .ivu-split-trigger-con {
        top: 50%;
        height: 100%;
        width: 0;
    }
    .aui-split-left {
        flex: 0 0 0px;
    }
    .aui-split-right {
        flex: 1;
        overflow: hidden;
    }
}