body {
    background: rgb(204, 204, 204);
}

page {
    background: white;
    display: block;
    margin: 0 auto;
    margin-bottom: 0.5cm;
    box-shadow: 0 0 0.5cm rgba(0, 0, 0, 0.5);
}

page[size="A4"] {
    width: 21cm;
    height: 29.7cm;
}

page[size="A4"][layout="landscape"] {
    width: 29.7cm;
    height: 21cm;
}

page[size="A3"] {
    width: 29.7cm;
    height: 42cm;
}

page[size="A3"][layout="landscape"] {
    width: 42cm;
    height: 29.7cm;
}

page[size="A5"] {
    width: 14.8cm;
    height: 21cm;
}

page[size="A5"][layout="landscape"] {
    width: 21cm;
    height: 14.8cm;
}

@media print {

    body,
    page {
        background: white;
        margin: 0;
        box-shadow: 0;
    }
}