@media print {
    body * {
        visibility: hidden;
    }
    .certificate-container, .certificate-container * {
        visibility: visible;
    }
    .certificate-container {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
        background: white;
        color: black;
    }
    .no-print {
        display: none;
    }
}