@media (width >= 160mm) {
    body[data-papersize=a4] {
        width: 210mm;
        height: 297mm;
        font-size: 12pt;
    }

    body[data-papersize=b5] {
        width: 176mm;
        height: 250mm;
        padding-top: 15mm;
        font-size: 10pt;
    }

    body[data-papersize=b5] label.textarea textarea {
        line-height: 12pt;
        background: none;
    }

    body[data-papersize=a5] {
        width: 148mm;
        height: 210mm;
        padding-left: 10mm;
        font-size: 8pt;
    }

    body[data-papersize=a5] label.textarea textarea {
        line-height: 10pt;
        background: none;
    }
}