Tutorial needs update

not sure where to post this. The tutorial here: http://www.kirupa.com/developer/mx2004/fullscreen.htm needs updating, it looks like this in Firefox.

my guess is it has something to do with the DocType declaration. anyway just thought i’d point this out as there is this note with the tutorial:

“Note that the CSS may not work in some of the older browsers since they do not support it completely. Refer to this link for more detail.”

when in fact the CSS doesn’t work with some of the newer browsers.