body {
    font-size: 10pt;
}

@page {
    size: A4 portrait;
    margin: 10mm;
}

@media print {
    body {
        font-family: sans-serif;
        font-size: 12pt;
    }

    header, footer, .no-print {
        display: none !important;
    }

    .only-print {
        display: block !important;
    }
}