.page-number {
    text-align: center;
    margin-bottom: 10px;
    display: none;
}

@media print 
{
    #top-header {
        display: none;
    }

    #page-content {
        margin: 0;
        padding: 0;
    }

    #sidebar {
        display: none;
    }

    .fx-command {
        display: none;
    }

    @page {
      size: A4 potrait;
      margin: 20mm;
    }

    html, body {
        overflow: visible;
        margin: 0;
    }

    .page-break {
        page-break-before: always;
    }

    .page-number {
        display: block;
    }
}