lucy24 - 8:19 am on Dec 3, 2012 (gmt 0)

font-family:arial,sans-serif,'Liberation Sans',Freesans

Whoops! You mean of course

font-family:arial,'Liberation Sans',Freesans,sans-serif

otherwise the last two would never be used. But there's so much overlap between the two linux families, you probably don't need both. (codestyle dot org says that if you don't have the first, there's only a 3% chance you've got the second. At least I think that's what they're saying.)

No matter what else you've got, the last item in your font stack should always be one of the generic five font families. Assuming for the sake of discussion that you've got the nerve to assemble stacks for cursive or fantasy ;)