But what does that actually mean? Well, 'front-end' means I design all the parts of the website that you can see, the visual stuff. The method is use is called a CMS 'Content Management System' which allows my clients to quickly and effortlessly modify the website themselves once its complete.
This means that my websites respond to the device its being viewed on. It will resize itself automatically to be viewed in either a large screen, smartphone or tablet. As you can see from the image here.