Chapter 1: CSS Architecture and Organization

If you’ve ever worked on a CSS codebase of any size—or even a small codebase with multiple developers—you’ll have realized how difficult it is to create CSS that’s predictable, reusable, and maintainable without being bloated. With added developers often comes added complexity: longer selectors, colliding selectors, and larger CSS files.

In this chapter, we’ll explore CSS architecture and organization. First up: file organization. We’ll take a look at strategies for managing CSS across projects, or as part of your own CSS framework.

Then we’ll look at specificity. It’s a frequent pain point for CSS development, especially for teams. Specificity is the means by which browsers decide which declarations ...

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