That's good confusion here
If there is something in particular you ca site as to why it's confusing, please let us know.
That's an interesting suggestion regarding separating the solution from the hints. Is this basically so the answer is hidden, as so you can get help without getting an answer?
That is odd, as it's not only correct from the looks of things to me, at least at a glance, but it worked for me too.
Which browser, OS and their versions are you using? Any extensions or browser settings that could be causing problems?