Flat design is a web design trend standing for minimalism and cleanness in the website design industry. This trend has become popular since 2012, replacing the Skeuomorphism trend – the most popular trend until then. Unlike skeuomorphism, which is characterized by real-life 3D objects and shiny buttons, flat design is recognizable for its flat shapes and objects; not generating depth, dimension or any effects, such as drop shadows, highlights and realistic textures. The goal of the flat design is users to put their focus on the content, by providing faster and more functional user experience. People undoubtedly are associating this trend with simplicity and cleanliness, modern and colourful design. The biggest advantage is mentioned in the compatibility with responsive design. Users easily embraced the trend because it offered them quick and easy content access. They are able to use the websites very easily and the loading time is faster. Flexible framework – grid is allowing