<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> </head> <body> <table align="center"> <tr> <td>a</td> <td>b</td> </tr> <tr> <td>c</td> <td>d</td> </tr> </table> </body> </html>
