本文概述了HTML5中video和audio元素所支持的多媒体格式，并详细对比了不同浏览器对于这些格式的支持情况。此外，还列举了HTML5中新增的各种input类型及其在各大浏览器中的兼容性。
当前，video 元素支持三种视频格式：
| 格式 | IE | Firefox | Opera | Chrome | Safari |
|---|---|---|---|---|---|
| Ogg | No | 3.5+ | 10.5+ | 5.0+ | No |
| MPEG 4 | 9.0+ | No | No | 5.0+ | 3.0+ |
| WebM | No | 4.0+ | 10.6+ | 6.0+ | No |
当前，audio 元素支持三种音频格式：
| IE 9 | Firefox 3.5 | Opera 10.5 | Chrome 3.0 | Safari 3.0 | |
|---|---|---|---|---|---|
| Ogg Vorbis | √ | √ | √ | ||
| MP3 | √ | √ | √ | ||
| Wav | √ | √ | √ |
| Input type | IE | Firefox | Opera | Chrome | Safari |
|---|---|---|---|---|---|
| No | 4.0 | 9.0 | 10.0 | No | |
| url | No | 4.0 | 9.0 | 10.0 | No |
| number | No | No | 9.0 | 7.0 | No |
| range | No | No | 9.0 | 4.0 | 4.0 |
| Date pickers | No | No | 9.0 | 10.0 | No |
| search | No | 4.0 | 11.0 | 10.0 | No |
| color | No | No | 11.0 | No | No |
| Input type | IE | Firefox | Opera | Chrome | Safari |
|---|---|---|---|---|---|
| datalist | No | No | 9.5 | No | No |
| keygen | No | No | 10.5 | 3.0 | No |
| output | No | No | 9.5 | No | No |
| Input type | IE | Firefox | Opera | Chrome | Safari |
|---|---|---|---|---|---|
| autocomplete | 8.0 | 3.5 | 9.5 | 3.0 | 4.0 |
| autofocus | No | No | 10.0 | 3.0 | 4.0 |
| form | No | No | 9.5 | No | No |
| form overrides | No | No | 10.5 | No | No |
| height and width | 8.0 | 3.5 | 9.5 | 3.0 | 4.0 |
| list | No | No | 9.5 | No | No |
| min, max and step | No | No | 9.5 | 3.0 | No |
| multiple | No | 3.5 | No | 3.0 | 4.0 |
| novalidate | No | No | No | No | No |
| pattern | No | No | 9.5 | 3.0 | No |
| placeholder | No | No | No | 3.0 | 3.0 |
| required | No | No | 9.5 | 3.0 | No |
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