CSS Bed: Classless CSS themes to use as starting points in web development

[2019]

But might be due a revival on the shoulders of LLMs.

Reminds me of this website for checking classless stylesheets.

https://dohliam.github.io/dropin-minimal-css/

For me it is definitely Pico.css. Honorable mentions: simple.css, tacit, w3c-chocolate.