Responsive webdesign in itself is the process of making a website work on very small screens, very large screens, and at any resolution in between.Over the last few years, the industry has collectively developed a shortlist of common best practices. Many of these practices focus on retrofitting websites intended for high resolution down to lower sizes. Others start at mobile and work up to the larger viewports, optimizing as needed. All of these practices can generally be categorized as either responsive or adaptive layouts.