With a huge rise in the number of people accessing news on mobile handsets, in March 2012 BBC News launched a new-look mobile website designed to work on a range of mobile devices and screen sizes: m.bbc.co.uk/news.

As Steve Herrmann, editor of the BBC News website, explained to our audience , the revamp was designed to make our mobile services even simpler and quicker to use, and make more content available, more easily.

The site uses a responsive design base and, as Chris Russell, head of product at BBC News, explains, we believe this is one of the most innovative and largest scale uses of this approach. Ultimately, it will enable us to deliver a better BBC News experience, tailored to how and where users access it, yet which feels familiar and consistent.

After the launch we spent six months improving and adding to the responsive site, taking on board user feedback. By October, when we had, in an average week, 13.3 million users worldwide accessing the site by mobile or tablet device, we began the process of directing all mobile users automatically to the responsive site. Steve Herrmann explained to users the thinking behind this radical change in our editor's blog.

In November, the site offered a fully responsive US election results service - with tailored graphics and text updating throughout election night.

We are continuing to roll out our responsive offering, refining and innovating as we go. For example, there is our new Indonesian language version of the responsive site - seemingly the world's first responsive website in an Asian language. As a global news provider, the BBC is aware that in many parts of the world mobile is the primary means of accessing the BBC News site. Because of this, our responsive strategy is particularly well suited to BBC World Service sites, as Phil Buckley, executive product manager of the World Service, explains.

See the BBC's Responsive News blog for more details about the thinking behind our responsive strategy.