@page {
    size: portrait;
}
@media print {
    header, footer, nav, .d-print-none, .card-header, .card-footer, .btn, .form, form, .row, .chart-area, .stats-area {
        display: none !important;
    }

    .print-area {
        display: block !important;
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        padding: 0;
        margin: 0;
    }

    @page {
        margin: 0;
    }
}