Introduction to HTML5
The HTML5 draft was formerly known as Web Applications 1.0. It was proposed by WHATWG in 2004, accepted by W3C in 2007, and a new HTML working team was established. On January 22, 2008, the first official draft was announced and is expected to be officially recommended to the public in September 2010. The WHATWG stated that the specification is currently a work in progress and remains a multi-year effort.
New tag
HTML5 provides new elements and attributes such as <nav> (site navigation block) and <footer>. This tag will help search engine indexing and better assist small screen devices and visually impaired people. In addition, it will also provide new functionality for other browsing elements, such as <audio> and < video> tag.
Some obsolete HTML4 tags will be removed. These include purely presentational tags such as <font> and <center>, which have been replaced by CSS.
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