Bas-Jan - 2014-06-15

I googled a few hours and search this forum, but I cannot find any solution to the following problem.
When using the following code:

$html='
    <table width="100%">
        <tr>
            <td width="20%">
                Cell with some text
            </td>
            <td width="60%">
                Lorem ipsum dolor sit amet, consectetur adipiscing elit. Praesent imperdiet luctus sapien a adipiscing. Mauris adipiscing sed leo in tincidunt. In turpis libero, facilisis at justo ac, blandit cursus velit. Etiam in turpis luctus, varius ligula id, posuere arcu. Vestibulum vehicula dui at purus pretium fermentum. Interdum et malesuada fames ac ante ipsum primis in faucibus. Morbi elementum nulla non tristique lobortis. 
            </td>
                <td width="20%">
                Cell with some text
            </td>
        </tr>
    </table>';

$pdf->writeHTML($html, true, false, true, false, '');

The second cell containing the long Lorem Ipsum text will overlap with the third cell.

What am I doing wrong ?