<html> <head> <link rel="stylesheet" href="370525-style.css"/> </head> <body> rowspan=2 and specified height on a sibling of the cell with percent-height div. Also, does not explicitly create 2nd row. <table> <tr> <td style="background: lightgreen"> <div style="height: 150px"> height=75% / 150px </div> blah </td> <td style="background: lightblue" height="200px" rowspan="2"> height=200px. </td> </tr> </table> </body> </html>