Principles of writing consistent, idiomatic CSS

Provides detailed rules for whitespace, comments, formatting, and preprocessors, as evidenced by sections on whitespace consistency and declaration order with practical examples.

Emphasizes that code should look like a single person typed it, with guidelines for selector formatting and property ordering to improve collaboration and readability.

Includes complete code examples, such as the grid layout demonstration, showing how to apply conventions in real-world scenarios for better understanding.

Extends conventions to CSS preprocessors like Sass, with specific advice on nesting limits and @extend/@include placement, making it adaptable for modern workflows.

Features multiple translations and is a living document with contributions, ensuring broad applicability and ongoing relevance across global teams.