<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-nz"> <!--<html xmlns="http://www.w3.org/1999/xhtml">--> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <!--<META HTTP-EQUIV="Content-Language" content="EN-nz">--> <title>WAI_3_5_6</title> </head> <body> <!-- the following elements should raise errors --> <table id="bad1"> <tbody> <tr> <th>This is a very long header</th> <th>This is also a very long header</th> </tr> <tr> <td>cell1</td> <td>cell2</td> </tr> </tbody> </table> <!-- the following elements should be fine --> <table id="bad1"> <tbody> <tr> <th abbr="long header">This is a very long header</th> <th abbr="another long header">This is also a very long header</th> </tr> <tr> <td>cell1</td> <td>cell2</td> </tr> </tbody> </table> </body> </html>