Header scrolling transition (Flinto prototype)

With the new Flinto feature “Behaviour Design” it's super easy to build transitions like these.

If you're interested in how this works, here's their blog post with a video: https://medium.com/flinto-software/we-just-launched-flinto-for-mac-2-a-big-free-update-eb5ac3b66c6e#.focnuiio3

I've added the flinto source file if you want to check it out by yourself. ☺️