CSS stands for Cascading Style Sheets, which is a style sheet language used for describing the look and formatting of a document written in a markup language such as HTML or XML.
CSS is used to define the visual appearance of web pages, including the layout, colors, fonts, and other visual aspects. By separating the presentation of a document from its content, CSS enables developers to change the look of a web page without having to rewrite the underlying HTML code.
CSS uses a cascading style sheet model, which means that multiple style sheets can be used to define the appearance of a document, with the rules in each sheet cascading down to the next. This allows for greater flexibility and control over the visual appearance of a web page.
CSS has evolved over the years and now includes advanced features such as animations, transformations, and media queries, which enable developers to create complex and responsive layouts that adapt to different devices and screen sizes.
Overall, CSS is a powerful tool for web developers that enables them to create visually appealing and responsive web pages that meet the needs of users on a wide range of devices and platforms.