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CSS-in-JS: Performance Issues and the Case for Returning to Native CSS

By

meistro

5mo ago· 7 min readenOpinion

Summary

The article critiques CSS-in-JS (Cascading Style Sheets in JavaScript) as a failed approach to frontend styling that promised elegance but delivered performance problems, unreadable code, and hydration bugs. The author argues that CSS-in-JS represents over-engineering that performs worse than traditional CSS, creates runtime overhead, and leads to less maintainable code. The piece advocates for returning to native CSS solutions for faster, more maintainable web applications.

Key quotes

· 4 pulled
CSS-in-JS was supposed to free us from global namespace nightmares and styling spaghetti. Instead, it wrapped us in a shiny new layer of chaos — one that performs worse, reads worse, and somehow costs more CPU cycles to do what a plain stylesheet did perfectly fine two decades ago.
This is not evolution; I'd call it over-engineering disguised as progress.
From Liberation to Performance Lock-In
We were promised elegance. What we got was runtime CSS parsing, unreadable class names, and hydration bugs straight out of hell.
Snippet from the RSS feed
CSS-in-JS promised simplicity but delivered performance issues. Learn why ditching it for native CSS solutions leads to faster, more maintainable web apps.

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