I wish I could claim it as my invention, but I saw it in a collection of loading indicators on zanstra.com. Unfortunately the site is now gone, so I don't even

I wish I could claim it as my invention, but I saw it in a collection of loading indicators on zanstra.com. Unfortunately the site is now gone, so I don't even know guy's name. By the way, here it is in JS - http://codepen.io/anon/pen/pijdg http://codepen.io/anon/pen/pijdg