Simon Willison’s Weblog

An Interactive Guide to CSS Grid (via) Josh Comeau’s extremely clear guide to CSS grid, with interactive examples for all of the core properties.

Posted 21st November 2023 at 4:25 pm

Recent articles

GPT-5: Key characteristics, pricing and model card - 7th August 2025
OpenAI's new open weight (Apache 2) models are really good - 5th August 2025
ChatGPT agent's user-agent - 4th August 2025

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