CSS Quiz Test Online (30 random Questions) 2025

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 CSS selector targets elements that are the nth child of their parent?

A) :nth-child

B) :child-nth

C) :child-of

D) :nth-of-type

2 / 30

2. Which of the following selectors has the least specificity?

A) Element selectors

B) Universal selectors

C) ID selectors

D) Class selectors

3 / 30

3. Which property in Grid is used to define named grid areas?

A) grid-template-areas

B) grid-template-rows

C) grid-template-columns

D) grid-area

4 / 30

4. Which CSS property is used to set the background image of an element?

A) background

B) image

C) background-image

D) background-style

5 / 30

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

A) Targeting Safari and Chrome browsers

B) Targeting Firefox browser

C) Targeting Microsoft Edge browser

D) Targeting Opera browser

6 / 30

6. Which CSS selector targets the last occurrence of an element?

A) :nth-last-child

B) :last-child

C) :last

D) :last-of-type

7 / 30

7. Which CSS property is used to set the width of an element?

A) length

B) size

C) width

D) dimension

8 / 30

8. What is the purpose of using feature detection libraries like Modernizr in CSS development?

A) To remove vendor prefixes from CSS code

B) To provide a fallback mechanism for older browsers

C) To detect the browser version

D) To optimize CSS performance

9 / 30

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

A) text-align: center;

B) float: left;

C) display: flex;

D) position: absolute;

10 / 30

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

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

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

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

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

11 / 30

11. Which CSS property is used to specify the color of the text?

A) text-style

B) color

C) text-color

D) font-color

12 / 30

12. Which CSS3 property is used to specify the order of flexible items in a flex container?

A) flex-wrap

B) flex-direction

C) order

D) justify-content

13 / 30

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

A) To improve CSS rendering performance

B) To remove vendor prefixes

C) To fix bugs in CSS code

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

14 / 30

14. Which CSS property is used to set the font size of an element?

A) text-size

B) font-size

C) size

D) font

15 / 30

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

A) @media (resolution: 2dppx)

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

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

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

16 / 30

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

A) It targets devices with landscape or portrait orientation

B) It targets devices with touch screens

C) It targets devices with specific operating systems

D) It targets devices with specific screen resolutions

17 / 30

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

A) Aligns flex items along the cross-axis

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

C) Adjusts the size of flex items

D) Aligns flex items along the main axis

18 / 30

18. What is the correct syntax for defining a media query in CSS?

A) media-query { ... }

B) @media query { ... }

C) @media { query: ...; }

D) media query { ... }

19 / 30

19. What does the justify-self property do in Grid?

A) Adjusts the size of grid columns

B) Aligns grid items along the cross-axis

C) Aligns grid items along the main axis

D) Aligns a grid item within its grid area along the inline axis

20 / 30

20. What does the flexbox layout model in CSS3 offer?

A) A way to create grid-based layouts

B) Improved support for media queries

C) A more efficient way to lay out, align, and distribute space among items in a container

D) Advanced text formatting options

21 / 30

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

A) To define the font family used in a webpage

B) To apply different styles based on the device characteristics

C) To create animations for web elements

D) To specify the color scheme of a website

22 / 30

22. Which CSS3 feature is used to apply rounded corners to elements?

A) box-shadow

B) opacity

C) text-shadow

D) border-radius

23 / 30

23. Which CSS property is used to specify the type of cursor to be displayed when hovering over an element?

A) mouse

B) cursor

C) pointer

D) hover

24 / 30

24. Which CSS property is used to create a shadow effect for text?

A) box-shadow

B) shadow

C) text-effect

D) text-shadow

25 / 30

25. What does the transform property in CSS3 allow you to do?

A) Create text animations

B) Apply 3D effects to elements

C) Change the font family of text

D) Rotate and scale elements

26 / 30

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

A) shadow-effect

B) element-shadow

C) element-effect

D) box-shadow

27 / 30

27. Why are vendor prefixes discouraged for production code?

A) They slow down the rendering of web pages

B) They increase the size of CSS files

C) They may cause compatibility issues with future browser versions

D) They are not recognized by any browsers

28 / 30

28. Which CSS3 property is used to create animations?

A) animate

B) transform

C) transition

D) keyframes

29 / 30

29. Which CSS property is used to create space between the border and the content of an element?

A) spacing

B) margin

C) padding

D) border-spacing

30 / 30

30. Which media query targets devices with a specific aspect ratio, such as widescreen monitors?

A) @media (max-aspect-ratio: 16/9)

B) @media (aspect-ratio: 16/9)

C) @media (orientation: landscape)

D) @media (min-aspect-ratio: 16/9)

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