BI.createWidget({
    type: 'bi.left_right_vertical_adapt',
    element: "#wrapper",
    lhgap: 10,
    rhgap: 10,
    items: {
        left: [{
            type: "bi.label",
            text: "左边的垂直居中",
            cls: "layout-bg1",
            width: 100,
            height: 30
        }],
        right: [{
            type: "bi.label",
            text: "右边的垂直居中",
            cls: "layout-bg1",
            width: 100,
            height: 30
        }]
    }
});