Fulfill the need of Web application
Many new features and standards have emerged as part of HTML 5. Once you detect the available features in today’s browsers, you can take advantage of those features in your application. Main focus of HTML5 is to make easier application with easy front-ends, drag and drop tools, discussion boards, wikis and other useful elements.
Offline Application cache
All browsers have some kind of caching m After a sometime, you open up your laptop and click the Back button in the browser hoping to see the previous page that was opened. However, as you are not connected to the internet and the browser didn’t cache the page properly, you are unable to view that page. You then click the Forward button thinking that at least that page will load, but it doesn’t.
Now it is easy to see which parts of the page are headers, nav, footers, aside, etc as the tags are specific for these all and most importantly know what their meaning and purpose is in whole the format. By using HTML5 elements we can increase the semantic value of the web page as the codes are very standardized.
If you are passionate about simple, elegant, easy to read code then HTML5 is the beast for you. HTML5 allows you to write clear and descriptive code, semantic code that allows you to easily separate meaning from style and content.
You can simply and easily type it out and be happy. The really great thing about it though, beyond the simplicity, is that it works in every browser clear back to the dreaded IE6.