One developer built 2,768 CSS demos solo — here's how he prevented style collisions

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A developer behind codefronts.com hand-wrote 2,768 CSS demos across 138 collections, all of which must coexist on shared gallery pages without breaking each other's styles. The core problem is that CSS silently resolves duplicate selectors by source order, meaning two demos sharing a class name like .card or .btn can invisibly overwrite each other with no console warning. Framework solutions such as CSS Modules and Shadow DOM were ruled out because they produce hashed or unfamiliar class names that make copy-pasted code harder for end users to read and adapt. The developer instead settled on a manual, mechanical naming convention applied at authoring time, designed to keep output legible to anyone pasting a snippet into an unfamiliar project. The system prioritizes human-readable code over build-tool automation, reflecting the unusual constraint that a copy-paste demo library must remain transparent to users who never see the underlying build process.

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