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BEM vs. SMACSS: Comparing CSS methodologies

Blog post from LogRocket

Post Details
Company
Date Published
Author
Nelson Michael
Word Count
1,917
Language
-
Hacker News Points
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Summary

CSS methodologies, such as Block, Element, Modifier (BEM) and Scalable and Modular Architecture for CSS (SMACSS), provide structured approaches to managing CSS codebases, each with unique advantages. BEM offers a rigorous naming convention that enhances readability and modularity by breaking down components into blocks, elements, and modifiers, which can make the codebase more intuitive but sometimes cumbersome due to lengthy class names. SMACSS, on the other hand, emphasizes categorization of CSS rules into five layers—Base, Layout, Module, State, and Theme—allowing for a more flexible approach that can simplify file structure and accelerate development time, though it may pose challenges for new team members due to its less prescriptive naming conventions. While BEM is praised for its explicitness and component-driven structure, SMACSS is appreciated for its scalability and ease of navigation within a single file, making the choice between the two largely a matter of personal preference and project requirements. Both methodologies aim to ensure clean, maintainable, and scalable CSS, ultimately enhancing developer experience and project efficiency.