I also thought it was very cool - extracted the source from the minified JS if anybody is interested in taking a look how it works: https://jsfiddle.net/powers/

I also thought it was very cool - extracted the source from the minified JS if anybody is interested in taking a look how it works: https://jsfiddle.net/powers/cy5fhLnk/ https://jsfiddle.net/powers/cy5fhLnk/