HTML5 has arrived! The W3C published a new editor's draft at the start of 2011, and many of the new features detailed within have widespread support across all the latest major browsers. But what does it mean to you, the web developer on the street? Should you embrace it right now, and start using it to implement your own futuristic unicorns and rainbows? In this talk Chris Mills from the Opera web browser looks at some HTML5 history, how it improves upon HTML4, the basics of some of the major new features, such as new structural elements, new form controls, <video> and <canvas>, and how to produce an HTML5 site that will also function in older browsers.