CSS Quiz
Understand the CSS concepts behind modern web pages in about 10 minutes. Get a clear 0 to 16 score with simple feedback and no sign up.
08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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See How You Compare
Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Below is a preview of how scores are typically distributed across each scale.
CSS Knowledge (CK)
CSS Knowledge (CK)
Average
8.5
Normal range
6.1 — 10.8
min.
0
max.
16
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
- prefers-low-animation
- reduced-transitions
- prefers-reduced-motion
- motion-preference
- The descendant selector: ul li
- The adjacent-sibling selector: ul + li
- The child selector: ul > li
- The general-sibling selector: ul ~ li
- align-items
- justify-content
- place-items
- align-content
WHAT THE TEST MEASURES
About This Assessment
CSS Quiz - Symptoms and Signs
Test your understanding of the CSS concepts that shape modern web pages. This free 16-question quiz covers selectors, the cascade, the box model, Flexbox, Grid, responsive rules, positioning, custom properties, and motion preferences. Questions mix core facts with short code and styling scenarios, giving you a 0–16 CSS Knowledge result with clear foundational, developing, or strong-knowledge bands. No sign-up is required.
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