HTML 5 video custom controls

YouTube is currently running a HTML5 beta. You can activate it by visiting http://www.youtube.com/html5. Currently not all Videos are displayed in HTML5 after activating the beta. Videos displayed in HTML5 get a different loading animation so you can identify them (like this one http://www.youtube.com/watch?v=KT1wdjlbyFc).

As you can see their video player just looks the same as the flash version.

In the HTML5 spec, there is a controls attribute for <video>.

Also check out this article: Video on the Web - Dive into HTML5. It explains:

By default, the element will not expose any sort of player controls. You can create your own controls with plain old HTML, CSS, and JavaScript. The element has methods like play() and pause() and a read/write property called currentTime. There are also read/write volume and muted properties. So you really have everything you need to build your own interface.

If you don’t want to build your own interface, you can tell the browser to display a built-in set of controls. To do this, just include the controls attribute in your tag.