The best responsive websites design are made for all of your users, not just the ones with high-speed Internet connections. A mobile-friendly website increases your chances of being found online and helps customers easily buy your products or services.
Responsive Web Design is a CSS approach to building sites that scale up or down for the various devices we use to browse the web. It uses flexible layouts and grids, images that resize automatically, and text that flows to fit the screen.
This enables us to create one site that works across all devices instead of having to build separate versions for each device type and screen size. This saves time and resources, not to mention money. It also reduces the complexity of managing content for multiple devices and browsers, which can be difficult and error prone.