How to CSS3
http://www.webdesign.org/html-and-css/tutorials/full-screen-responsive-background.21836.html
http://mobile.smashingmagazine.com/2013/07/22/simple-responsive-images-with-css-backgrounds/
http://mobile.smashingmagazine.com/2013/05/10/how-to-avoid-duplicate-downloads-in-responsive-images/
http://css-tricks.com/perfect-full-page-background-image/
http://voormedia.com/blog/2012/11/responsive-background-images-with-fixed-or-fluid-aspect-ratios
http://colorschemedesigner.com
https://github.com/mark-rolich/RulersGuides.js
http://codemug.com/html/custom-scrollbars-using-css