@page {
    size: A4 landscape; 
    margin: 0; 
    padding: 0;
}

@media screen {
    body {
        background: #eee;
    }
    .sheet {
        background: white;
        box-shadow: 0 .5mm 2mm rgba(0,0,0,.3);
        margin: 5mm;
    }
}

body {
    margin: 0;
    padding: 0;
}

.sheet {
    width:297mm;
    height:210mm;
    margin: 0;
    padding:0;
    position: relative;
    page-break-after: always;
}