Wikipedia: HTML5
the fifth revision of the HTML standard (created in 1990 and standardized as HTML4 as of 1997) ...... core aims have been to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but XHTML 1 and DOM Level 2 HTML as well ..... introduces markup and application programming interfaces (APIs) for complex web applications ...... Many features of HTML5 have been built with the consideration of being able to run on low-powered devices such as smartphones and tablets. In December 2011 research firm Strategy Analytics forecast sales of HTML5 compatible phones will top 1 billion in 2013. ...... new video, audio and canvas elements, as well as the integration of Scalable Vector Graphics (SVG) content that replaces the uses of generic object tags ........ new elements, such as section, article, header and nav, are designed to enrich the semantic content of documents ...... The W3C is developing a comprehensive test suite to achieve broad interoperability for the full specification by 2014, which is now the target date for Recommendation. ..... advancing HTML5 to Recommendation provides the entire Web ecosystem with a stable, tested, interoperable standard. ...... Ian Hickson of Google is the editor of HTML5. ...... Some deprecated elements from HTML 4.01 have been dropped, including purely presentational elements such as font and center, whose effects are achieved using Cascading Style Sheets. There is also a renewed emphasis on the importance of DOM scripting (e.g., JavaScript) in Web behavior. ......... In addition to specifying markup, HTML5 specifies scripting application programming interfaces (APIs) ...... The canvas element for immediate mode 2D drawing. ..... Timed media playback ..... Offline Web Applications ..... Document editing ...... Drag-and-drop .... Cross-document messaging ..... Browser history management .... MIME type and protocol handler registration ..... Microdata .... Web Storage, a key-value pair storage framework that provides behaviour similar to Cookies but with larger storage capacity and improved API. ..... Geolocation .... HTML5 alone cannot provide animation within web pages. Either JavaScript or CSS3 is necessary for animating HTML elements. ..... XHTML5 is the XML serialization of HTML5. .... XHTML5 requires XML's strict, well-formed syntax. ...... September 2011, 34 of the world's top 100 Web sites were using HTML5 ..... As of 1 April 2011, this logo is official. ..... The W3C then said the logo "represents HTML5, the cornerstone for modern Web applications".
