Simon Willison’s Weblog

98.css (via) This is pretty beautiful: a CSS library that meticulously styles HTML form elements to look like the Windows 98 interface.

Posted 22nd April 2020 at 4:22 am

Recent articles

ChatGPT agent's user-agent - 4th August 2025
The ChatGPT sharing dialog demonstrates how difficult it is to design privacy preferences - 3rd August 2025
Reverse engineering some updates to Claude - 31st July 2025

css 229 windows 39

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe