- https://github.com/andybrewer/mvp
- https://github.com/kognise/water.css
- https://github.com/xz/new.css
- https://github.com/vladocar/Basic.css
- https://github.com/oxalorg/sakura
- https://github.com/igoradamenko/awsm.css
- https://github.com/hawkz/gdcss
- https://github.com/emareg/classlesscss
- https://github.com/vincentdoerig/latex-css (disclaimer: I am the author)
By the way, why not mention the very well tuned Pico.css? https://picocss.com/examples/preview/
Most of these (including yours) can be compared easily there.
https://github.com/oxalorg/sakura/blob/master/src/bookmarkle...
with
https://mrcoles.com/bookmarklet/
edit: found this to be useful for testing https://dohliam.github.io/dropin-minimal-css/
By the way, why not mention the very well tuned Pico.css? https://picocss.com/examples/preview/