CSStokens

CSS Tokens are fundamental building blocks in the syntax of Cascading Style Sheets (CSS). They are the smallest units of meaning in CSS and are used to construct CSS rules and declarations. Tokens can be categorized into several types, including identifiers, at-keywords, strings, numbers, dimensions, percentages, and more. Each type of token serves a specific purpose in defining styles for web documents.

Identifiers are used to name things like classes, IDs, and custom properties. At-keywords, prefixed with an "@" symbol, are used to introduce CSS at-rules, such as @media or @import. Strings are enclosed in quotes and are used for values like font names or URLs. Numbers represent numerical values and can be used alone or combined with units to form dimensions. Percentages are used to specify relative values, often in the context of layout and typography.

CSS Tokens are processed by the CSS parser, which converts the sequence of tokens into a structured format that the browser can understand and apply to render web pages. Understanding CSS Tokens is essential for anyone working with CSS, as it provides a foundation for writing efficient and maintainable stylesheets. By mastering the use of different token types, developers can create more complex and dynamic styles, enhancing the visual and functional aspects of web design.