Basically HTML5 has it’s many new syntactical features, which include the <video>, <audio>, and <canvas> elements, as well as the integration of SVG content. Due to these new elements, it will be very easy to integrate multimedia and graphical content to web without using flash and third party plugins. There are also another new elements like <section>, <article>, <header> and <nav> which enrich the semantic value of the document. Other major advantages of HTML5 are described below. – See more at: http://www.html5arena.com/blog/html5/10-major-advantages-of-html5 1. Mutuality 2. Cleaner markup / Improved Code 3. Improved Semantics 4. Elegant forms 5. Consistency 6. Improved Accessibility 7. Fulfill the need of Web application 8. Offline Application cache 9. Client-side database 10. Geolocation support
