container {
    height: 100vh;
}

hstack {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
    width: 100%;
    align-items: center;
    justify-items: center;
}

vstack {
    display: grid;
    grid-auto-flow: row;
    grid-auto-rows: minmax(0, 1fr);
    height: 100%;
    align-items: center;
    justify-items: center;
}

.mt0 {
    margin-top: 0;
}

.mt1 {
    margin-top: 8px;
}

.mt2 {
    margin-top: 16px;
}

.mb0 {
    margin-bottom: 0;
}