<html><head><title>colgroup element example</title></head><body> <table width="500" border="8" cellspacing="5" cellpadding="5" align="center"> <colgroup span="2" style="color:blue;"></colgroup> <colgroup style="color:red;"></colgroup> <tr><td>col: 1, group: 1</td> <td>col: 2, group: 1</td> <td>col: 3, group: 2</td></tr> <tr><td>col: 1, group: 1</td> <td>col: 2, group: 1</td> <td>col: 3, group: 2</td></tr> <tr><td>col: 1, group: 1</td> <td>col: 2, group: 1</td> <td>col: 3, group: 2</td></tr> </table></body></html>