body {
    margin: 0 auto;
    height: 100vh;
}

.smart-grid-layout {
    --smart-grid-layout-rows: 10% 80% 10%;
    --smart-grid-layout-row-gap: 0;
    --smart-grid-layout-col-gap: 0;
    height: 100%;
}

    .smart-grid-layout .row {
        /*background: #36434F;*/
    }

    .smart-grid-layout .col-sm-2 {
        padding: 0;
    }

    .smart-grid-layout .col-sm-8 {
        background: #ebedf0;
    }

smart-layout,
smart-tree,
smart-list-box {
    width: 100%;
    height: 100%;
}