? CSS Quiz: Test Your Knowledge!

Here’s a quick CSS quiz to challenge your understanding — great for practice or interviews.

? Multiple Choice Questions

1. What does the z-index property do?

A. Resizes the element
B. Sets the stacking order of elements
C. Aligns text vertically
D. Changes the opacity

Answer: B

2. Which unit is relative to the parent’s font size?

A. px
B. em
C. %
D. rem

Answer: B

3. What value of position is used to fix an element to the top of the viewport when scrolling?

A. relative
B. absolute
C. fixed
D. static

Answer: C

4. Which property hides content that overflows a container?

A. display
B. visibility
C. overflow
D. z-index

Answer: C

5. What does the ::after pseudo-element require to work?

A. A z-index
B. An id
C. The content property
D. A background color

Answer: C

? True or False

6. The !important rule can be overridden by another rule with higher specificity.

False — !important takes top priority unless another !important with higher specificity is used.

7. inline-block allows width and height to be set.

True

? Want More?

I can give you:

• A full interactive quiz in HTML/JS

• Flashcards for CSS topics

• Interview-style CSS coding questions

Just let me know what format you’d like!