This document discusses responsive design and its benefits over separate mobile and desktop websites. Responsive design allows a single website to automatically adapt its layout and content presentation based on the screen size and orientation of the device used to access it. The key benefits of responsive design are that it provides access to content across different devices using a single URL, is easier to maintain than separate sites, and helps future-proof a site for emerging technologies and various screen sizes. The document outlines some of the technical and content challenges of implementing a responsive design, such as testing across devices and determining what information should appear or be hidden at different screen widths. It also provides examples of how local government websites have benefited from a responsive design approach.