CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 45 · 40 questions

Code tip (Rule, then maths): Find the topic: syntax, selectors, properties, colours, box model, cascade, flexbox or media queries. Decide which rule or property applies to the element. For sizes, write the sum down: both sides for the box model, free space for flexbox.

1. 1.🔍 Which is the odd one out? (a) changes the text size (b) sets colours and fonts (c) rounds box corners (d) counts down a timer
2. 2.🎨 A CSS file usually ends with which extension? (a) .png (b) .html (c) .css (d) .js
3. 3.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
4. 4.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) black (c) blue (d) green
5. 5.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
6. 6.🧩 Which language rounds box corners? (a) JavaScript (b) HTML (c) CSS
7. 7.True or false: body is an element selector. (a) True (b) False
8. 8.💪 Which flexbox property spaces boxes along a row? (a) justify-content (b) gap (c) align-items (d) flex-direction
9. 9.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the later one (b) neither (c) the first one (d) the shorter one
10. 10.🌈 Which colour is rgb(255, 0, 255)? (a) white (b) blue (c) magenta (d) black
11. 11.⚖️ Which selector is the strongest? (a) a class selector (b) an id selector (c) an element selector
12. 12.🌈 In #710000 the red part is the hex number 71. What is it as a normal number?
13. 13.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 80px;
      padding: 15px;
      border: 1px solid black;
      margin: 10px;
    }
14. 14.🧩 Which language gives the page structure? (a) JavaScript (b) CSS (c) HTML
15. 15.⚖️ What colour is the text of this element?
    <p class="note" id="intro">Hi</p>
    CSS:
    .note { color: green; }
    #intro { color: black; } (a) red (b) blue (c) green (d) black
16. 16.🖌️ What colour is behind the letters?
    li {
      text-align: center;
      background-color: yellow;
      font-size: 24px;
      color: blue;
    } (a) blue (b) yellow (c) black
17. 17.Which of these is padding? (a) a solid or dotted edge (b) space outside the border (c) the text or picture (d) space inside the border
18. 18.💪 Which flexbox property sets space between boxes? (a) justify-content (b) display: flex (c) flex-direction (d) gap
19. 19.🌈 In #000065 the blue part is the hex number 65. What is it as a normal number?
20. 20.📱 Which tag helps phones show a page at the right size? (a) the hr tag (b) the br tag (c) the viewport meta tag (d) the title tag
21. 21.✍️ CSS declarations go inside which brackets? (a) ( ) (b) { } (c) [ ] (d) < >
22. 22.📱 The screen is 375px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (min-width: 600px) {
      p {
        font-size: 16px;
      }
    }
23. 23.✍️ What is the selector in this CSS rule?
    h1 {
      font-size: 20px;
      color: red;
    } (a) font-size (b) p (c) h1 (d) red
24. 24.✍️ In color: blue; which part is the property? (a) blue (b) : (c) ; (d) color
25. 25.📱 What does a media query check? (a) the battery level (b) the screen width (c) the page title (d) the time of day
26. 26.✍️ Which sign goes between a property and its value? (a) : (b) = (c) - (d) ;
27. 27.✍️ How many declarations (property: value pairs) are in this rule?
    .box {
      font-weight: bold;
      color: red;
    }
28. 28.True or false: JavaScript changes the page live. (a) True (b) False
29. 29.💪 Which justify-content value equal gaps, none at ends? (a) space-between (b) flex-start (c) center (d) flex-end
30. 30.🎨 One CSS file can style how many pages? (a) only one word (b) only one image (c) no pages (d) many pages
31. 31.🌈 Which colour is #00ff00? (a) magenta (b) bright green (c) red (d) black
32. 32.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (max-width: 768px) {
      p {
        font-size: 18px;
      }
    }
33. 33.🖌️ What colour are the letters?
    h2 {
      font-size: 40px;
      color: white;
      text-align: right;
      background-color: green;
    } (a) white (b) green (c) red
34. 34.Which of these does CSS do? (a) changes the text size (b) reacts to a button click (c) makes a link (d) puts a picture on a page
35. 35.🎨 Which tag holds CSS inside the head? (a) <css> (b) <script> (c) <body> (d) <style>
36. 36.✍️ What is the selector in this CSS rule?
    .note {
      text-align: center;
      font-style: italic;
      width: 300px;
    } (a) italic (b) text-align (c) .note (d) #top
37. 37.🌈 Hex digits go 0 to 9, then A to which letter? (a) F (b) Z (c) G (d) J
38. 38.🎨 Which tag connects an outside CSS file? (a) <link> (b) <img> (c) <a> (d) <css>
39. 39.✍️ What value is given to width in this rule?
    h1 {
      text-align: center;
      width: 300px;
    } (a) red (b) 300px (c) width (d) italic
40. 40.🖌️ Which CSS property picks the font style? (a) font-family (b) text-align (c) color (d) font-size

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