page {
    padding: 15px;
    background: white;
    display: block;
    margin: 0 auto;
    margin-bottom: 0.5cm;
}

page[size="A4"] {
    width: 21cm;
}

@media print {
    body, page {
        padding: 0;
        margin: 0;
        box-shadow: 0;
    }
}