HTML5_the_missing_manual

At first glance, you might assume that HTML5 is the fifth version of the

HTML web-page-writing language. But the real story is a whole lot messier.

HTML5 is a rebel. It was dreamt up by a loose group of freethinkers who

weren’t in charge of the official HTML standard. It allows page-writing practices

that were banned a decade ago. It spends thousands of words painstakingly telling

browser makers how to deal with markup mistakes, rather than rejecting them outright.

It finally makes video playback possible without a browser plug-in like Flash.

And it introduces an avalanche of Javascr ipt-fueled features that can give web pages

some of the rich, interactive capabilities of desktop software.