The CSS3 Test is a web application that checks if your browser supports CSS3 properties.
This is an essential bookmark for everyone who likes toying around with the newest CSS3 properties.
The test returns your browser’s supported attributes, and, by clicking each property, you can see if there are any values that aren’t supported, too.
The CSS3 Test is also a great tool for checking if your styles are supported in state of the art browsers–or, if you fancy that, load up an older version of, e.g., FireFox and check for styles you can implement with some degree of certainty.
- Website: http://css3test.com/