<!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> <title>Centered Fixed Width Content Example</title> <style type="text/css"> body { margin: 0; padding: 0; } #content { border: 1px solid #f00; margin-left: auto; margin-right: auto; width: 1000px; } </style> </head> <body> <div id="content"> //insert content here </div> </body> </html>