@page {
    size: a4;
    margin: 10mm 0;
}

@media print {
    body {
        margin: 0;
        background-color: rgb(255, 255, 255, 100);
    }

    .card {
        border: 0;
    }

    .col-print {
        float: left;
        flex: 0 0 33.33333%;
        max-width: 33.33333%;
        padding-bottom: 0;
    }

    .card-body {
        padding-bottom: 0;
    }

    :nth-child(6n+3 of .col-print) {
        break-after: page;
        page-break-after: always;
    }
}