http://necolas.github.io/normalize.css/,Normalize,https://github.com/AllThingsSmitty/css-protips#readme,Protips
http://alistapart.com/article/axiomatic-css-and-lobotomized-owls,Heydon Pickering's post,https://github.com/AllThingsSmitty/css-protips#readme,Protips
https://css-tricks.com/inheriting-box-sizing-probably-slightly-better-best-practice/,Demo,https://github.com/AllThingsSmitty/css-protips#readme,Protips
http://bitsofco.de/styling-broken-images/,original post,https://github.com/AllThingsSmitty/css-protips#readme,Protips
https://developer.mozilla.org/en-US/docs/Web/CSS/pointer-events,Pointer events,https://github.com/AllThingsSmitty/css-protips#readme,Protips
https://css-tricks.com/centering-css-complete-guide/,a nice write-up,https://github.com/AllThingsSmitty/css-protips#readme,Protips