CSS stands for Cascading Style Sheets. It is a style sheet language used for describing the look and formatting of a document written in HTML (HyperText Markup Language). CSS separates the presentation of a document from its structure

allowing developers to control the visual appearance of web pages.

CSS consists of a set of rules that dictate how HTML elements should be displayed on a webpage. These rules control attributes such as font size

color

spacing

borders

backgrounds

and more. CSS also supports advanced techniques such as layout positioning

animations

and transitions.

CSS can be added to a webpage in multiple ways

such as using inline CSS within HTML tags

embedding CSS in the head section of an HTML document

or linking an external CSS file.

By using CSS

web developers can create consistent and visually appealing designs across multiple webpages

making it an essential tool for building modern and responsive websites.