deCSS3 is a bookmarklet that will let you see how well your pages are gracefully degrading without having to open up IE6-8.
Our cloud-based feature matrix serves as a roadmap for what is hopefully full support for all CSS3 properties.
| Feature | Currently Supported? |
|---|---|
animation | Yes |
background-clip | Yes |
background-origin | Yes |
background-size | Yes |
border-radius | Yes |
border-image | Yes |
box-shadow | Yes |
colors: rgba, hsla | Yes |
column-count | Yes |
linear-gradient | Mostly |
@media queries | Yes |
| multiple backgrounds | No |
text-shadow | Yes |
transform | Yes |
transition | Yes |
If you're interested in helping? Please let us know! We're looking for a brain trust.
WTFPL yo.