@media print {
    body.print-a4 #excel-view .excel-fa-box .fa-left {
        font-size: 9px !important;
    }

    body.print-a4 #excel-view .excel-fa-box .fa-right {
        font-size: 8.2px !important;
    }

    body.print-a3 #excel-view .excel-fa-box .fa-left {
        font-size: 9.5px !important;
    }

    body.print-a3 #excel-view .excel-fa-box .fa-right {
        font-size: 8.7px !important;
    }
}