Test Your CSS Knowledge With a 100-Question Quiz Site
If you’re looking to gauge how well you really know CSS, there’s a new resource worth checking out. CSS-Questions is a quiz platform built by Sunkanmi Fafowora, a contributor to the CSS-Tricks Almanac and author of the CSS Color Functions Guide. The site is designed for developers who want to test their understanding of CSS beyond the basics.
CSS-Questions offers over a hundred questions covering various CSS topics. For a quick check, there’s a basic test with 20 questions. Those looking for a deeper dive can take the comprehensive exam, which pulls from the full question bank.
Given Fafowora’s background, it’s no surprise that color functions make an appearance. The first question in the quiz is about color-mix().

You can see where this is heading—sometimes the answers don’t land on the first try.

Close, but not quite. It’s the kind of miss that makes you want to go back to the docs.
After a few attempts, though, the pattern becomes clearer.




