I've had this app in my mind for quite some while but last week I've actually put in the work and created it.

A small fun app to test your CSS knowledge. Find the correct CSS selectors for the 10 puzzles as fast as possible.

You can try it out yourself here:
https://css-speedrun.netlify.app

I'd love to have your feedback and how long it took you to solve the puzzles. Feel free to comment below or on Twitter.