Google adsense now support Responsive web design

As we all know that the Google Adsense ads are of fixed width. So when ever you think about having a responsive web design for your site, the biggest problem was how to make ads respond to the screen size.
Recently Google announced his new modification in there ad policy. Now your Google Adsense ads can be responsive with the design. Here is the reference link http://adsense.blogspot.co.uk/2013/05/updates-to-our-modifying-ad-code-policy.html

Now Adsense publishers can modify the AdSense ad code to make them responsive with the web site design as long as those modifications do not artificially inflate ad performance or harm advertisers.