CSS Architecture

CSS architecture is the methodology for organizing and structuring stylesheets. Its goal is for the code to be well-structured, reusable, and easy to maintain, especially in larger projects.

Principles

In CSS architecture, it is important to separate base styles, layout, modules, and states. This helps clarify which rules apply to what and avoid unnecessary repetition.

This example demonstrates how base, layout, module, and state styles can be separated within a simple project.

BEM methodology

BEM (Block, Element, Modifier) is a popular naming convention that helps write scalable and clean CSS code. Blocks represent independent units, elements are parts of blocks, and modifiers represent variations.

In this example, the BEM syntax shows how to create buttons in different sizes and with icons.

Tips for CSS architecture

Some best practices help keep stylesheets clear and maintainable.

• Use a consistent naming convention (e.g., BEM) to keep the code understandable.
• Organize files into a logical folder structure: base, layout, components, utilities.
• Avoid excessive specificity and the use of !important, as they make code harder to maintain.