HTML5 is the latest HTML revision by the World Wide Web Consortium (W3C) standards completed in October 2014. The goal is to replace HTML 4.01 and XHTML 1.0 standards developed in 1999, with a view to the rapid development of the Internet at the time of application, the network contemporary standards to match the network needs.
Generalized dealt with HTML5, the actual meant to include HTML, CSS and JavaScript, including a combination of techniques. It hopes to reduce the richness of the web browser Internet application services that require plug-ins.
HTML5 adds many new syntax features, including the <video>, <audio> and <canvas> element, while the integrated SVG content. These elements are added to more easily add and manipulate images and multimedia content in Web pages.
Other new elements such as <section>, <article>, <header> and <nav> is to enrich the data content of the document. The new property is added for the same purpose, but there are some attributes and elements are removed out.
Some elements, like <a>, <cite> and <menu> is modified or redefined standardized. Meanwhile APIs DOM and HTML5 has become a fundamental part of the. HTML5 also defines the details of dealing with illegal documents, so that all browsers and client programs can consistently handle syntax errors.