Simon Willison’s Weblog

Jeffrey Zeldman: XHTML WTF. Reading the comments, it’s scary how many people are totally ill-informed about HTML5 and XHTML5.

Posted 4th July 2009 at 1:22 am

Recent articles

The Summer of Johann: prompt injections as far as the eye can see - 15th August 2025
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LLM 0.27, the annotated release notes: GPT-5 and improved tool calling - 11th August 2025

education 26 html5 83 jeffrey-zeldman 23 web-standards 46 xhtml 52 xhtml5 2

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