While I love technical articles such as this it saddens me there is always a gap providing a working example. All code an no visuals mean most people won't try it. Please give us a URL to play with, or at minimum, animated gif to see this. I often find this with well written technical articles, open source projects, etc. Folks are excited to go over code detail but never show us the demo. You'll get more uptake since the hard work is already done!