Most browsers can properly view this:
http://acid1.acidtests.org/
IE fucks it over, FireFox & Opera are a little dodgy, Chrome can properly view this:
http://acid2.acidtests.org/
IE fucks it over, FireFox can't complete it, Chrome gets farther then FF, Opera gets farther then all but still fails.
http://acid3.acidtests.org/
http://acid1.acidtests.org/
IE fucks it over, FireFox & Opera are a little dodgy, Chrome can properly view this:
http://acid2.acidtests.org/
IE fucks it over, FireFox can't complete it, Chrome gets farther then FF, Opera gets farther then all but still fails.
http://acid3.acidtests.org/