I just want to say that you're one of my favorite designers out there and I enjoy your various posts out there on the web. Thanks so much for sharing your talent for us developers to peek inside!
Seeing the differences between how this performs in chromium vs firefox is a little annoying... it's one thing that chromium still does much better, for the time being I hope.
Can you share a un-minified version of this? I would love to see how you are using the animate lib to do this. Using a beautifier is still to hard to read for me :/
I'm a CS student really interested in web design, and I just started dabbling CSS animation for a month. To be honest, this page, together with Google IO 2015 page, are the best I've seen. I really look forward to reading your post about how this page is built or the source code.