http://codepen.io/rkpasia/pen/LNEQod
https://kimmobrunfeldt.github.io/progressbar.js/
https://placehold.it/
http://cssreference.io/
http://flickity.metafizzy.co/
https://benhowdle89.github.io/grade/
http://codepen.io/vailjoy/pen/OWVwvO
http://wtfhtmlcss.com/
http://specro.github.io/Philter/
http://codepen.io/soulwire/pen/bKens/
https://autoprefixer.github.io/
https://tympanus.net/Development/AnimatedSVGIcons/
http://codepen.io/sevilayha/pen/IdGKH
http://qrohlf.com/trianglify/
https://unsplash.it/
https://codepen.io/enxaneta/full/adLPwv
https://ihatetomatoes.net/how-to-create-css-glitch-effect
https://codepen.io/surjithctly/pen/pLDwe
http://wisepops.com/
https://scrollrevealjs.org/
