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

Wilson Lin on FastRender: a browser built by thousands of parallel agents - 23rd January 2026
First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026

blueprint 2 css 231 mark-boulton 1 structuralclasses 2

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