Simon Willison’s Weblog

CSS numbered code listings

10th July 2002

I’ve been experimenting with using CSS and <ol> tags to format code listings, complete with line numbering. Here’s what I’ve got so far: Numbered Code Listing Experiment.

Posted 10th July 2002 at 3:52 pm · Follow me on Mastodon, Bluesky, Twitter or subscribe to my newsletter

More recent articles

First impressions of Claude Cowork, Anthropic's general agent - 12th January 2026
My answers to the questions I posed about porting open source code with LLMs - 11th January 2026
Fly's new Sprites.dev addresses both developer sandboxes and API sandboxes at the same time - 9th January 2026

This is CSS numbered code listings by Simon Willison, posted on 10th July 2002.

Next: First Church of Pac-Man

Previous: The semantic web explained

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

Previously hosted at http://simon.incutio.com/archive/2002/07/10/numberedCodeListing