Flat UI Design
Definition and purpose
Flat design refers to a style of interface design which removes any stylistic choices that give the illusion of three-dimensions (such as drop shadows, gradients, or textures) and is focused on a minimalist use of simple elements, typography and flat colors. Designers may prefer flat design because it allows interface designs to be more streamlined and efficient. It is easier to quickly convey information while still looking visually appealing and approachable. Additionally, it makes it easier to design an interface that is responsive to changes in browser size across different devices. With minimal design elements, websites are able to load faster and resize easily, and still look sharp on high-definition screens. As a design approach, it is often contrasted to skeuomorphism  and rich design.
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