Simon Willison’s Weblog

Subscribe

24th May 2025

Tool Interactive CSS Flexbox Playground — Experiment with CSS Flexbox properties in real-time using this interactive playground. Adjust container properties like flex-direction, justify-content, and align-items while watching the layout change instantly, then select individual items to customize their flex-grow, flex-shrink, flex-basis, and alignment settings. The dynamically generated CSS code output shows the exact syntax needed to recreate your layout, making it an effective learning tool for mastering flexbox concepts.

Recent articles

This is a beat by Simon Willison, posted on 24th May 2025.

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