<table height=100% bgcolor=blue border>
 <tr>
  <td height=20%>20%</td>
 </tr>
 <tr>
  <td height=80%>80%</td>
 </tr>
</table>
<BR>
<table bgcolor=blue border>
 <tr height=50>
  <td>row 50</td>
 </tr>
 <tr>
  <td height=50>50</td>
 </tr>
</table>
<BR>
<table width=5 bgcolor=blue border>
 <tr>
  <td height=5>5 5 5</td>
 </tr>
 <tr>
  <td height=50>50</td>
 </tr>
</table>
<table bgcolor=blue height=100 border>
 <tr>
  <td height=200>200</td>
 </tr>
 <tr>
  <td height=50>50</td>
 </tr>
</table>
<BR>
<table bgcolor=blue border>
 <tr>
  <td height=200>200</td>
 </tr>
 <tr>
  <td height=50>50</td>
 </tr>
</table>
<BR>
<table bgcolor=orange width=20 border>
 <tr>
  <td height=100 rowspan=2>100</td>
  <td height=100>100</td>
 </tr>
 <tr>
  <td height=100>100 100 100</td>
 </tr>
</table>
<BR>
<table bgcolor=yellow border>
 <tr>
  <td height=100%>100%</td>
 </tr>
</table>
<BR>
<table bgcolor=orange height=100% border>
 <tr>
  <td height=20%>20%</td>
 </tr>
 <tr>
  <td height=80%>80%</td>
 </tr>
</table>
<BR>
<table bgcolor=gray border>
 <tr>
  <td height=5%>5%</td>
  <td height=200>200</td>
 </tr>
</table>
<BR>
<table height=200 bgcolor=orange border>
 <tr>
  <td height=50%>50%</td>
  <td height=20>20</td>
 </tr>
</table>
<BR>
<table height=100% border>
 <tr>
  <td height=500>500</td>
 </tr>
 <tr>
  <td height=80%>80%</td>
 </tr>
</table>
<BR>
<table bgcolor=red height=100% border>
 <tr>
  <td height=500 rowspan=2>500</td>
  <td>auto</td>
 </tr>
 <tr>
  <td>auto</td>
  <td>auto</td>
 </tr>
 <tr>
  <td>auto</td>
  <td>auto</td>
 </tr>
</table>
<BR>
<table bgcolor=orange border>
 <tr>
  <td height=400><table bgcolor=blue height=100%><tr><td>100%</td></tr></table></td>
 </tr>
</table>