Simon Willison’s Weblog

YUI 2.4.0 released. Lots of great new features, but the one I’m most excited about is Selector: YUI finally has a CSS query engine.

Posted 5th December 2007 at 3:32 pm

Recent articles

GPT-5: Key characteristics, pricing and model card - 7th August 2025
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ChatGPT agent's user-agent - 4th August 2025

css 229 javascript 718 libraries 22 selector 1 yahoo 107 yui 33

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