html {
    font-family: DejaVu Sans Mono, monospace;
}

.columns {
    display: grid;
    grid-template-columns: 1fr;
}

@media (width > 80ch) {
    .columns {
        grid-template-columns: 1fr 2fr;
    }
}

@media print {
    @page {
        size: A4;
    }
    html {
        font-size: 4mm;
    }
    .columns {
        grid-template-columns: 1fr 2fr;
    }
}