MediaWiki on a Mac

I've moved my html site over to MediaWiki. Because I customized some of the CSS, it still displayed great in FireFox but not in Internet Explorer. So I had to tweek the fix files in the skins directory so that it looked OK. No problem.

Here is the problem, I don't have access to a Mac, but am worried that once I officially move the site over, my Mac users could have problems. Does anyone know how well Mac browsers support CSS and if there is likely to be trouble? Where can I go to get on a Mac for a few minutes to test my site? Ideas?

The quickest way is to post a link here for Mac users to check for you.

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Thanks. That was too simple for me to think of.