Responsive Web Design, often abbreviated to ‘RWD’, is when a website layout is designed to automatically format to the screen size it is being viewed on. Essentially this type of web design allows your website to be ‘Mobile Friendly’, without the need of having a separate mobile website or special mobile web design template.
With a Responsive Website, the websites format and layout are automatically adjusted by the websites code, to give the best viewing experience for the individual device it is being viewed on. This means it is ‘Responsive’ to the environment it is being viewed with. With websites now being viewed on so many different screen sizes and devices, having a responsive website is a must.
The traditional approach to designing websites for mobile devices, was to have a separate mobile website designed specially for those mobile devices. But with responsive websites, this is no longer required, and the same website can be used for all devices.