Simon Willison’s Weblog

Blueprint. A CSS Framework. I’ve been trying to articulate why I’ve started to think that structural class names are a necessary evil in the comments.

Posted 13th August 2007 at 12:01 pm

Recent articles

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025
Useful patterns for building HTML tools - 10th December 2025

blueprint 2 css 230 mark-boulton 1 structuralclasses 2

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