Add overlays, control the video timeline, insert subtitles, and offer localized content. Create new experiences with interactive HTML5 video.

By switching to HTML5, YouTube can now also make wider use of Google’s VP9 video codec. YouTube says this switch allows videos to start 15 to 80 percent faster and reduces the average bandwidth ...

The video-format war between HTML5 and Adobe Systems' Flash is old news. More than half of Web video is now compatible with HTML5.

HTML5 video is an important part of Internet Explorer 9, and given the big-name industry support for H.264, Microsoft's decision was not altogether surprising.