Front-end development services include everything that has to do with the front or the public and/or user-facing content of an application. They create the interface and logic of the application, paying closest attention to how users interact and navigate through the site or app. They build things like buttons, links, pictures, animations, etc. for the interface. They turn back-end code into a graphical user interface and set up layouts based on what the customer requirements. Front-end developers also create the aesthetic and experiential characteristics, based on responsive design and best practices.