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 CSS property is used to set the font weight?

A) font-weight

B) font-bold

C) weight

D) font-style

2 / 30

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

A) border-radius

B) opacity

C) box-shadow

D) text-shadow

3 / 30

3. What is the purpose of the color media feature?

A) It targets devices with specific aspect ratios

B) It targets devices with specific screen widths

C) It targets devices with specific color capabilities

D) It targets devices with specific screen resolutions

4 / 30

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

A) Adjusts the size of flex items

B) Aligns a flex container's lines within the flex container when there is extra space in the cross-axis

C) Aligns flex items along the main axis

D) Aligns flex items along the cross-axis

5 / 30

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

A) padding

B) spacing

C) border-spacing

D) margin

6 / 30

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

A) display: table;

B) display: flex;

C) display: grid;

D) display: inline-block;

7 / 30

7. When should vendor prefixes be removed from CSS properties?

A) Before the feature is widely supported by all browsers

B) Immediately after adding them for experimental features

C) After thorough testing and ensuring cross-browser compatibility

D) Only if the website is designed for modern browsers

8 / 30

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

A) Rotate and scale elements

B) Apply 3D effects to elements

C) Create text animations

D) Change the font family of text

9 / 30

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

A) Aligns flex items along the cross-axis

B) Adjusts the size of flex items

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

D) Aligns flex items along the main axis

10 / 30

10. Which of the following is an example of an inline CSS?

A) <style>body { color: red; } </style>

B) <link rel="stylesheet" href="styles.css">

C) <body style="color: blue;">

D) .text { color: green; }

11 / 30

11. Which tool is commonly used to automate the generation of vendor prefixes in CSS?

A) CSS Validator

B) CSS Lint

C) Autoprefixer

D) CSS Minifier

12 / 30

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

A) flex-direction

B) order

C) flex-wrap

D) justify-content

13 / 30

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

A) :first

B) :first-element

C) :first-of-type

D) :first-child

14 / 30

14. Which CSS property is used to place a grid item within a grid area?

A) grid-placement

B) grid-area

C) item-position

D) place-item

15 / 30

15. Which CSS property is commonly used to adjust the layout based on the screen orientation?

A) flex-direction

B) orientation

C) text-align

D) display

16 / 30

16. Which CSS3 feature is used to apply gradients to elements?

A) gradient-style

B) linear-gradient

C) color-gradient

D) gradient-color

17 / 30

17. Which CSS3 feature is used to apply different styles to an element based on its state, such as hover or focus?

A) Pseudo-classes

B) Animations

C) Transitions

D) Flexbox

18 / 30

18. How can you select elements that have a specific attribute with a value starting with a certain string?

A) [attribute$="value"]

B) [attribute~="value"]

C) [attribute*="value"]

D) [attribute^="value"]

19 / 30

19. Which CSS3 feature is used to create a responsive design for web pages?

A) animations

B) transitions

C) grids

D) media queries

20 / 30

20. Which of the following selectors selects all elements of a specific type?

A) Class selector

B) ID selector

C) Descendant selector

D) Universal selector

21 / 30

21. In Flexbox, what does the flex-grow property determine?

A) The initial size of a flex item

B) The ability of a flex item to shrink

C) The alignment of a flex item along the cross-axis

D) The ability of a flex item to grow

22 / 30

22. Which CSS property is used to specify the thickness of the border?

A) border-width

B) border-size

C) thickness

D) border-thickness

23 / 30

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

A) Targeting Firefox browser

B) Targeting Microsoft Edge browser

C) Targeting Safari and Chrome browsers

D) Targeting Opera browser

24 / 30

24. 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

25 / 30

25. Which CSS3 property is used to create animations?

A) transition

B) keyframes

C) transform

D) animate

26 / 30

26. What is the specificity of the following selector: div.container #content p.highlight span?

A) 121

B) 1003

C) 123

D) 111

27 / 30

27. Which CSS property is commonly used to apply responsive design principles?

A) width: 100%;

B) position: absolute;

C) float: left;

D) display: flex;

28 / 30

28. Which CSS property is used to control the order of the elements in the document flow?

A) order

B) position

C) float

D) z-index

29 / 30

29. What is the correct order of the CSS box model?

A) Padding, Margin, Content, Border

B) Margin, Padding, Border, Content

C) Padding, Border, Width, Height

D) Border, Margin, Height, Width

30 / 30

30. What does the gradients feature in CSS3 allow you to create?

A) Smooth transitions between colors

B) Rounded corners for elements

C) Shadow effects for elements

D) A gradual transition between two or more specified colors

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