Introduction to CSS3

CSS3 is fully backward compatible, so you don't need to change your existing designs.

CSS3 Modules

CSS3 has been divided into "modules". The old specifications have been broken down into smaller chunks, and new ones have been added.

Some of the most important CSS3 modules are as follows:

• Selectors
• Box Model
• Background and Borders
• Text Effects
• 2D/3D Transforms
• Animations
• Multi-column Layout
• User Interface

CSS3 Recommendations

W3C's CSS3 specifications are still under development.

However, modern browsers now support CSS3 properties.