CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 122 · 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.🌈 Hex digits go 0 to 9, then A to which letter? (a) Z (b) F (c) G (d) J
2. 2.🌈 Which colour is #ff0000? (a) red (b) white (c) bright green (d) magenta
3. 3.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
4. 4.🌈 Which colour of light is strongest in rgb(235, 112, 26)? (a) green (b) blue (c) red
5. 5.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
   .box {
     width: 280px;
     padding: 20px;
     border: 3px solid black;
     margin: 5px;
   }
6. 6.True or false: .star is a class selector. (a) True (b) False
7. 7.✍️ What is the selector in this CSS rule?
   p {
     font-weight: bold;
     width: 300px;
     text-align: center;
   } (a) p (b) .note (c) font-weight (d) 300px
8. 8.⚖️ What colour is the text of this element?
   <p class="big" id="intro">Hi</p>
   CSS:
   .big { color: white; }
   .big { color: blue; } (a) white (b) red (c) black (d) blue
9. 9.🎯 Which element does the selector div style? (a) <div class="note"> (b) <p class="note"> (c) <span> (d) <h1 id="hero">
10. 10.💪 Which justify-content value equal gaps, none at ends? (a) flex-start (b) flex-end (c) space-between (d) center
11. 11.True or false: CSS changes the text size. (a) True (b) False
12. 12.⚖️ What colour is the text of this element?
    <h1 class="star" id="hero">Hi</h1>
    CSS:
    .star { color: white; }
    .star { color: orange; } (a) orange (b) red (c) white (d) purple
13. 13.🖌️ What colour are the letters?
    h1 {
      font-size: 36px;
      text-align: center;
      background-color: purple;
      color: red;
    } (a) red (b) blue (c) purple
14. 14.What does color do? (a) picks the font style (b) sets the letter colour (c) centres a heading (d) makes letters bigger
15. 15.⚖️ What colour is the text of this element?
    <h1 class="big" id="hero">Hi</h1>
    CSS:
    #hero { color: orange; }
    #hero { color: red; } (a) red (b) green (c) white (d) orange
16. 16.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 70px;
      padding: 15px;
      border: 4px solid black;
      margin: 5px;
    }
17. 17.What does justify-content: flex-end do? (a) equal gaps, none at ends (b) packs boxes at the start (c) puts boxes in the middle (d) packs boxes at the end
18. 18.True or false: padding is space inside the border. (a) True (b) False
19. 19.🎨 Which tag holds CSS inside the head? (a) <css> (b) <script> (c) <body> (d) <style>
20. 20.📱 Which tag helps phones show a page at the right size? (a) the viewport meta tag (b) the title tag (c) the hr tag (d) the br tag
21. 21.True or false: li is an id selector. (a) True (b) False
22. 22.🖌️ Which CSS property makes letters bigger? (a) color (b) text-align (c) font-family (d) font-size
23. 23.⚖️ What colour is the text of this element?
    <h2 class="menu" id="intro">Hi</h2>
    CSS:
    .menu { color: black; }
    #intro { color: blue; } (a) black (b) orange (c) white (d) blue
24. 24.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 230px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 40px wide (no margins).
25. 25.✍️ How does a CSS comment start? (a) # (b) /* (c) // (d) <!--
26. 26.What does font-weight do? (a) colours behind the text (b) makes the text bold (c) picks the font style (d) sets the letter colour
27. 27.📱 What does a media query check? (a) the time of day (b) the screen width (c) the battery level (d) the page title
28. 28.⚖️ Which selector is the weakest? (a) a class selector (b) an element selector (c) an id selector
29. 29.🖌️ Which CSS property centres a heading? (a) text-align (b) color (c) font-size (d) font-weight
30. 30.📦 In the box model, which part is space outside the border? (a) padding (b) content (c) margin (d) border
31. 31.🖌️ What colour is behind the letters?
    li {
      text-align: left;
      background-color: green;
      font-size: 32px;
      color: purple;
    } (a) purple (b) green (c) black
32. 32.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 26px;
      }
    }
33. 33.📱 The screen is 820px wide. Does the rule inside @media apply?
    p {
      font-size: 16px;
    }
    @media (max-width: 768px) {
      p {
        font-size: 14px;
      }
    } (a) No (b) Yes
34. 34.⚖️ Two rules with the same selector set a colour. Which one wins? (a) neither (b) the later one (c) the shorter one (d) the first one
35. 35.True or false: #top is an id selector. (a) True (b) False
36. 36.✍️ What is the selector in this CSS rule?
    .box {
      background-color: yellow;
      padding: 8px;
    } (a) h2 (b) 8px (c) background-color (d) .box
37. 37.🌈 Which colour of light is strongest in rgb(26, 227, 45)? (a) blue (b) red (c) green
38. 38.🌈 In #002b00 the green part is the hex number 2b. What is it as a normal number?
39. 39.📱 The screen is 540px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (min-width: 600px) {
      p {
        font-size: 14px;
      }
    }
40. 40.🧩 Which language changes the text size? (a) CSS (b) JavaScript (c) HTML

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