Understanding CSS3 with examples -Introduction to CSS3

CSS3 include so many new features and functions that it can be hard to achieve before CSS3. The inclusion of native support for things like rounded corners, 2D/3D Transformations and multi-column layouts are just the samples.

Most important CSS3 modules are:

1. Selectors
2. Box Model
3. Backgrounds
4. Borders
5. Text Effects
6. 2D/3D Transformations
7. Animations
8. Multiple Column Layout
9. User Interface

The CSS3 specification is still under development by W3C.
However, many of the new CSS3 properties have been implemented in modern browsers.

CSS3 is completely backwards compatible, so you will not have to change existing designs. Browsers will always support CSS2.