Summary: The card component is a preview of more detailed content a user sees when actioned. Elements include multimedia, text, links, graphs, and captions.

The card is a user interface component that acts as an entry point to more detailed information. Varying sources of information are pooled together and presented in a digestible way.

The proliferation of varying screen dimensions and the launch of HTML5/CSS3 around the turn of the decade enabled the card to take shape. It was the perfect representative of the new web, where social media sites like Facebook, Twitter, and Pinterest launched into the mainstream. The web saw greater personalization, aggregation, and socialization than ever before. The card was its container.