CSS Quiz Test Online (30 random Questions) 2026

Take this CSS Quiz Test Online and challenge your knowledge with 30 carefully crafted questions. Whether you’re a beginner or an experienced developer, this quiz will help you assess your understanding of CSS fundamentals, styling techniques, selectors, properties, layouts, and advanced concepts.

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30 Minutes CSS Quiz Test Online

Test your CSS knowledge with this 30-minute quiz! Covering fundamental to advanced concepts, this quiz features 30 multiple-choice questions that will challenge your understanding of selectors, properties, layout techniques, animations, and responsive design. Perfect for interview preparation and skill enhancement.

1 / 30

1. Which media query targets devices with high-resolution screens, such as Retina displays?

A) @media (resolution: 2dppx)

B) @media (max-resolution: 2dppx)

C) @media (device-resolution: 2dppx)

D) @media (min-resolution: 2dppx)

2 / 30

2. What is the purpose of the min-width media query?

A) It applies styles if the viewport width is equal to or less than the specified value

B) It applies styles if the viewport height is equal to or less than the specified value

C) It applies styles if the viewport width is equal to or greater than the specified value

D) It applies styles if the viewport height is equal to or greater than the specified value

3 / 30

3. What is the specificity of the following selector: body .container #content?

A) 110

B) 111

C) 101

D) 100

4 / 30

4. What does the CSS property align-self do in Flexbox?

A) Adjusts the size of flex items

B) Aligns a flex item within its flex container along the cross-axis

C) Aligns flex items along the cross-axis

D) Aligns flex items along the main axis

5 / 30

5. What is the specificity value of the following selector: div#content .paragraph?

A) 101

B) 110

C) 100

D) 111

6 / 30

6. What is the purpose of the -webkit- prefix in CSS?

A) Targeting Firefox browser

B) Targeting Safari and Chrome browsers

C) Targeting Microsoft Edge browser

D) Targeting Opera browser

7 / 30

7. Which CSS selector targets only the first occurrence of an element?

A) :first-child

B) :first-element

C) :first-of-type

D) :first

8 / 30

8. Which property is used in Grid to control the alignment of grid items along the row axis?

A) align-items

B) justify-content

C) justify-items

D) align-content

9 / 30

9. Why is cross-browser compatibility important in CSS development?

A) To enhance security features of web pages

B) To ensure consistent rendering of web pages across different browsers

C) To reduce the size of CSS files

D) To make web pages load faster

10 / 30

10. Which CSS3 feature is used to create 2D and 3D transformations?

A) translate

B) rotate

C) transform

D) transition

11 / 30

11. Which CSS3 feature is used to create text effects like shadows and outlines?

A) text-effect

B) text-shadow

C) text-style

D) text-outline

12 / 30

12. Which CSS3 property is used to create shadow effects around an element?

A) element-effect

B) shadow-effect

C) box-shadow

D) element-shadow

13 / 30

13. What is the specificity value of the selector: body p#content?

A) 101

B) 100

C) 102

D) 010

14 / 30

14. What does the transition property in CSS3 allow you to do?

A) Specify timing functions for animations

B) Apply animations to elements

C) Create multi-column layouts

D) Define gradients for backgrounds

15 / 30

15. What is the primary purpose of media queries in CSS?

A) To specify the color scheme of a website

B) To apply different styles based on the device characteristics

C) To create animations for web elements

D) To define the font family used in a webpage

16 / 30

16. Which of the following is NOT a common technique for achieving cross-browser compatibility in CSS?

A) Implementing polyfills

B) Writing browser-specific CSS files

C) Utilizing CSS resets

D) Using vendor prefixes

17 / 30

17. Which CSS selector has the highest specificity?

A) Universal selectors

B) ID selectors

C) Element selectors

D) Class selectors

18 / 30

18. What does the following media query target: @media (max-height: 600px)?

A) Viewports with a width greater than or equal to 600 pixels

B) Viewports with a height greater than or equal to 600 pixels

C) Viewports with a height less than or equal to 600 pixels

D) Viewports with a width less than or equal to 600 pixels

19 / 30

19. What CSS property is used to create a responsive grid layout in CSS?

A) display: flex;

B) display: inline-block;

C) display: table;

D) display: grid;

20 / 30

20. Which CSS technique is commonly used to hide elements on smaller screens in responsive design?

A) display: none;

B) opacity: 0;

C) position: absolute;

D) visibility: hidden;

21 / 30

21. Which CSS property is used to change the background color of an element?

A) background-color

B) text-color

C) color

D) background

22 / 30

22. In Flexbox, what is the purpose of the flex-shrink property?

A) To align flex items along the cross-axis

B) To set the initial size of a flex item

C) To determine how much a flex item can grow

D) To determine how much a flex item can shrink

23 / 30

23. Which CSS property is used to control the spacing between lines of text?

A) line-spacing

B) text-spacing

C) spacing

D) line-height

24 / 30

24. Which CSS property is used to make text italic?

A) font-italic

B) font-style

C) text-style

D) italic

25 / 30

25. Which CSS selector targets elements that are adjacent to each other?

A) ~ (general sibling combinator)

B) :next

C) :adjacent

D) + (adjacent sibling combinator)

26 / 30

26. What does the CSS property order do in Flexbox?

A) Aligns flex items along the cross-axis

B) Aligns flex items along the main axis

C) Adjusts the size of flex items

D) Sets the order of flex items within their flex container

27 / 30

27. Which CSS property is commonly used to create a responsive navigation menu?

A) text-align: center;

B) position: absolute;

C) display: flex;

D) float: left;

28 / 30

28. Which CSS technique is commonly used to adjust font sizes based on the viewport size?

A) font-weight

B) line-height

C) font-size

D) font-family

29 / 30

29. What is the purpose of the orientation media query?

A) It targets devices with touch screens

B) It targets devices with specific operating systems

C) It targets devices with landscape or portrait orientation

D) It targets devices with specific screen resolutions

30 / 30

30. What is the purpose of using polyfills in CSS development?

A) To fix bugs in CSS code

B) To improve CSS rendering performance

C) To remove vendor prefixes

D) To provide fallbacks for CSS features not supported by older browsers

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