https://asvd.github.io/microlight/

https://github.com/joshbuchea/HEAD

https://plyr.io/#video

http://www.csspurge.com/

http://thenewcode.com/1082/Make-a-Responsive-Animated-Walk-Cycle-with-SVG-and-CSS-steps

https://720kb.github.io/checkbox.css/

https://css-tricks.com/examples/hrs/