> Video.js is a web video player built from the ground up for an HTML5 world. It supports HTML5 and Flash video, as well as YouTube and Vimeo (through [plugins](https://github.com/videojs/video.js/wiki/Plugins)). It supports video playback on desktops and mobile devices. This project was started mid 2010, and the player is now used on over ~~50,000~~ 100,000 websites.
Thanks to the awesome folks over at [Fastly](http://www.fastly.com/), there's a free, CDN hosted version of Video.js that anyone can use. Simply add these includes to your document's
Then, whenever you want to use Video.js you can simply use the `<video>` element as your normally would, but with an additional `data-setup` attribute containing any Video.js options. These options
can include any Video.js option plus potential [plugin](https://github.com/videojs/video.js/wiki/Plugins) options, just make sure they're valid JSON!
To build your own custom version read the section on [contributing code](CONTRIBUTING.md#contributing-code) and ["Building your own copy"](CONTRIBUTING.md#building-your-own-copy-of-videojs) in the contributing guide.