Use a browser tool like Firebug to see what's going on with the CSS - this may be helpful too:
http://www.w3.org/Style/Examples/007/center.en.html
What theme are you using?
Use a browser tool like Firebug to see what's going on with the CSS - this may be helpful too:
http://www.w3.org/Style/Examples/007/center.en.html
What theme are you using?