CSS Font Size Increase Looses Text

[w]

At the moment this seems to only affect the Forum.  As an example go to the link below.  In the first paragraph titled "An Incomplete Guide to SEO Part 1:" you'll see a reference to a Google patent number.  Keep an eye on it and now use the "A+" to increase the font size.  Two clicks of "A+" the patent number is gone.  Some how text is getting lost.  This might be just a problem with SMF though I'm not sure.

http://forum.joomla.org/index.php/topic,12880.0.html

If this isn't in the correct forum please move it.

[compass]

I am on FF and could not duplicate this.