Looks nifty, well done. :)
If you're open to suggestions, please add some way to reset the animations.
eg I just pressed a play button thing, and it animated... and that's it. Can't replay it, and reloading the page doesn't work. :(
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Ahhh, force reloading the page does. That'll do for now.
Still, if it's easy to add a reset button or similar that'd probably be useful. :)
