<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. <table> <tr> <td style="background: lightgreen"> <div style="height: 75%"> height=75% / ignored </div> blah </td> <td style="background: lightblue" height="200px" rowspan="2"> height=200px. </td> </tr> <tr> <td style="background: orange"> 2nd row, 1st column </td> </tr> </table> </body> </html>