You can refer to the PNG Image with Color Coding or use the tabular data option below. Note: The table includes some modifications in regards to Opera support for audio and video which are not represented in the PNG.
This information is provided as is, please know that HTML5 is a rapidly evolving specification and this refers only to these specific features in current versions of Web browsers (Chrome 1, Firefox 3, IE8, Opera 9.64, Safari 4.0) unless otherwise noted.
For more support information, see the following resources
| Chrome | Firefox | Internet Explorer | Opera | Safari | |
|---|---|---|---|---|---|
| contentEditable | Yes | Yes | Yes | Yes | Yes |
| Stylable Elements (new) | Yes | Yes | No | Yes | Yes |
| getElementsByClassName | Yes | Yes | No | Yes | Yes |
| Cross-Document Messaging | Yes | Yes | Yes | Yes | Yes |
| Web Forms 2.0 | Partial | No | No | Yes | Partial |
| Drag and Drop | Yes | Yes | Yes | No | Yes |
| <audio> | No | 3.5 | No | No | Yes |
| <video> | 3.0 | 3.5 | No | Labs release, partial | Yes |
| <canvas> | Yes | Yes | No | Yes | Yes |
| Server-sent DOM Events | No | No | No | Partial | No |
| Client-side Storage (name/value) | 2.x | Yes | Yes | No | Yes |
