What does CSS stand for?

CSS stands for Cascading Style Sheets. This terminology reflects the underlying principle of how styles are applied and prioritized in web design. The term "cascading" refers to the way styles are applied in a hierarchy, where multiple style rules can potentially affect the same elements on a webpage. If a conflict arises between rules, CSS resolves this through specificity and the order in which the styles are defined.

Understanding the concept of cascading is crucial for web developers as it allows for efficient and flexible styling of HTML elements. By using a structured approach to define styles, developers can create consistent, manageable designs across their websites. Unlike Custom Style Sheets or Common Style Sheets, which aren't formally recognized terms in web development, Cascading Style Sheets is the standard nomenclature indicating a widely used styling language in conjunction with HTML and other web technologies.