.nrui-layout {
    --nrui-layout-left-width: 200px;
    display: flex;
    flex-direction: row;
    overflow: hidden;
    min-height: 0;
    box-sizing: border-box;
}
.nrui-layout:after,
.nrui-layout:before {
    content: '';
    display: block;
    clear: both;
}
.nrui-layout [class^="nrui-layout"],
.nrui-layout [class*=" nrui-layout"] {
    box-sizing: border-box;
}
.nrui-layout-left {
    overflow: hidden;
    flex: 0 0 var(--nrui-layout-left-width);
    max-width: var(--nrui-layout-left-width);
    min-width: var(--nrui-layout-left-width);
    width: var(--nrui-layout-left-width);
}
.nrui-layout-content {
    flex: auto;
    overflow: hidden;
    width: 0;
}