Code
Execute
<!DOCTYPE html> <html> <body> <table border=1> <colgroup> <col span="1" style="background-color:red"> <col style="background-color:green"> </colgroup> <tr> <th>Firstname</th> <th>Lastname</th> </tr> <tr> <td>Wiki</td> <td>techy</td> </tr> </table> </body> </html>
Result
