how to use html5 attribute 'role'?
 

'role' attribute in html5 used as an indication. It will be very useful on server side processing and usability issues. Coming complexity, it will explains the role of complexity of a particular section in the website. The common roles like logo, menu, main container, sidebar...

We will mostly use role attribute in html 5 and css 3 based web site designing means responsive web designing and mobile apps designing.

I have read in j query dot com about this role attribute. You just go through the demos and examples which are given in j query dot com, you can know more.

t appears that in HTML5, the contents of the role attribute is specified as a WIA-ARIA attribute. See, specifically, the last paragraph of section 3.2.3 "Global attributes", where it states: