Also known as RWD is a strategy in which a website adapts to all screen aspects and resolutions. The process makes a website render in a browser that fits all screen sizes. It is quite important from a business perspective as you might not know what device a user is using while browsing your website. Now that the majority of the users prefer hand-held devices to cater to their browsing needs, a responsive web design must adhere to the resolution and screen aspect ratios that hand-held devices are set to. Responsive Web Design makes your business more lucrative as users find it easy to navigate your website. Besides that, it makes your website appear quite often in the SERPs as well.