Testing the browser for CSS3 support
Recently I came across an interesting CSS3Test service .

After entering the service’s website, your browser immediately passes a check for support of all CSS3 properties and gives a total percentage of completion.
Lists of properties by groups and the percentage of passage corresponding to them are also displayed.

Property Groups:
- Backgrounds and Borders
- Image Values and Replaced Content
- Selectors
- Media queries
- Basic user interface
- Transitions
- Animations
- 2D transforms
- 3D Transforms]
- Text
- Fonts
- Color
- Multi-column layout
- Values and units
Each property passes several tests, the result of each of them can be viewed by clicking on the item.

ps: and yes. We are waiting for 100% in all respects!
http://css3test.com