CSS3 tutorials

guide

A List Apart: Articles: Building Books with CSS3
How to Keep Your CSS3 Code Markup Slim
Decoupling HTML From CSS | Smashing Coding

basic know-how

CSS3 - Columns

advance tips

A Look into: CSS3 Negation (:NOT) Selector
CSS3 Attribute Selector: Targeting the File Type

Understanding CSS Filter Effects - HTML5 Rocks

gallery

Powerful New CSS- and JavaScript-Techniques (2012 Edition) | Smashing Coding

example

Create Stacked Images with CSS3 Pseudo-Elements | Web Resources | WebAppers
Create Folded Paper Effect in JavaScript and CSS3 | Web Resources | WebAppers
Pocket : LESS CSS Tutorial: Designing A Slick Menu Navigation bar
A Pure CSS3 Cycling Slideshow | Smashing Coding