Applying "page-break-before" to a table row (tr)

Inside <head>, set this style in your CSS stylesheet

<head>
    <style>
        @media print {
            tr.page-break  { display: block; page-break-before: always; }
        }   
    </style>
</head>

That way, it will produce a page break during printing right before this table row.

<tr class="page-break">
</tr>

Applying “page-break-before” to a table row (tr)