8x8 pixels icons [CSS]

This is the coded version of the 8x8 Pixels Icons shot of @Rovane Durso.

Some goergeous 8x8px icons, but with the css experiment, I decided to decline them in higher proportions, for obvious reasons :)

Don't hesitate to feedback of fork or anything you want with.
( After Rovane aprobation I guess :) )

Fullscreen demo : http://codepen.io/LukyVj/full/AhEsD/
Dig into the code : http://codepen.io/LukyVj/pen/AhEsD/