Mobile & Responsive Web Design As more consumers pull out their smartphones in stores, on the street, and on the bus your site must look as good on their home computer as it does on their laptop, tablet, or smartphone. A Responsive website uses a single template and changes the layout depending on the screen resolution the device has. You can see this in action if you grab the right side of your browser and shrink the screen width. Responsive design gives the best experience across the widest range of devices. Get started on your project