User Interface (UI) is an important part of web design as it enables the designer to make the most of the interactive features of a web page. Usability is all about making the web page easy and pleasant to use for users who plan to explore it. Usability means that a digital product or service that is not easy to understand or use is rendered useless. It is the job of a web developer to ensure that all people can find their way around a website.
Web designers have to plan the layout of web pages in terms of its appearance on different monitor resolutions. They have to ensure that the size and arrangement of web pages is such that it does not cause eye strain on the eyes. Web designers are required to pay special attention to the elements of a layout that might cause discomfort to the user, such as line spacing, colour, font, images, logos, animations and interactivity. A web designer’s job also requires them to pay close attention to how a layout looks on a smaller scale and how this affects its presentation when viewed in full screen mode on a large monitor.