Note to @elusien : I found a couple of issues (bugs?) with your css3 generator.
Animation data field - if you include two or more “returns” after the last curly bracket of the last animation data (ie. at least one blank line) (which is easily done when you are copying and pasting), you get an error message (“badly formed animation data…”). However, in this case, pressing OK doesn’t allow you to progress.
I spent an hour scratching my head about this, wondering what was wrong with my animation data, until I finally twigged.
Do you think it’s important enough to either re-write your code, or maybe add a sentence about this in your instructions? Cheers, J