@media print {
    @page { margin: 0; }
    body { margin: 1.6cm 0; }

    .container{
        width: 100%;
        max-width: 200mm;
    }

    -webkit-print-color-adjust: exact !important;   /* Chrome, Safari 6 – 15.3, Edge */
    color-adjust: exact !important;                 /* Firefox 48 – 96 */
    print-color-adjust: exact !important;           /* Firefox 97+, Safari 15.4+ */
}