What does the acronym CSS stand for in web development?

The acronym CSS stands for Cascading Style Sheets. This terminology is foundational in web development, as CSS is a stylesheet language used for describing the presentation of a document written in HTML or XML. The "Cascading" part refers to the way styles are applied and how they can cascade down from one style sheet to another, allowing for multiple sources of styles to influence the display of a web page.

The ability to separate content from presentation provides significant advantages, such as easier maintenance, reusable styles, and overall improved site speed and performance. CSS allows developers to control layout, colors, fonts, and other visual aspects of a website, enhancing user experience and design.

While the other options use similar terms related to styles and sheets, they do not accurately represent the standard terminology conventionally used in web development.