update CSS into 2014

Time Machine got stuck in 2012!
Updated CSS reset to https://github.com/necolas/normalize.css
http://caniuse.com/css-transitions
http://caniuse.com/transforms2d
http://caniuse.com/css-opacity , https://developer.mozilla.org/en-US/docs/Web/CSS/opacity
http://caniuse.com/css-gradients , https://developer.mozilla.org/en-US/docs/Web/CSS/linear-gradient