Re: How to target CSS in FF or SF only on a Mac ?

[TheDoc]

You some serious errors going on if you’re seeing major differences between FF and Safari on Mac/PC. The changes should be extremely small (maybe a tiny bit different in the text rendering).

Remember to run your code through http://validator.w3.org/

If problems persist after validation, you can use some javascript to target certain OS’s, but there really shouldn’t be a problem.