@namespace url(http://www.w3.org/1999/xhtml);

/* I have written a user script which works much better that this style:
http://userscripts.org/scripts/show/4065. */

/* changelog:
 - fixed bug with centered paragraphs being uncentered (visible on google.com)
 - more of the same fix
*/

p {
  text-align: justify;
}

center p,
[align="center"] p {
  text-align: center;
}