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

JustHTML is a fascinating example of vibe engineering in action - 14th December 2025
OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI - 12th December 2025
GPT-5.2 - 11th December 2025

css 230 javascript 727 libraries 23 selector 1 yahoo 107 yui 33

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