CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 313 · 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 colour is rgb(255, 0, 0)? (a) yellow (b) red (c) blue (d) white
2. 2.🧩 Which language counts down a timer? (a) HTML (b) CSS (c) JavaScript
3. 3.🎯 Which element does the selector .menu style? (a) <p class="big"> (b) <span class="note"> (c) <span class="menu"> (d) <span id="menu">
4. 4.📦 How much space across (px) does this box take in all, margin included?
   .box {
     width: 250px;
     padding: 5px;
     border: 3px solid black;
     margin: 15px;
   }
5. 5.🧩 Which language lays out the page? (a) CSS (b) JavaScript (c) HTML
6. 6.True or false: the border is the line round the box. (a) False (b) True
7. 7.🖌️ Which CSS property sets the letter colour? (a) background-color (b) text-align (c) color (d) font-weight
8. 8.Which of these does CSS do? (a) shows a pop-up message (b) counts down a timer (c) adds space around boxes (d) makes headings and lists
9. 9.🌈 Which colour of light is strongest in rgb(170, 81, 127)? (a) blue (b) red (c) green
10. 10.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
11. 11.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 430px;
      justify-content: flex-end;
    }
    Inside are 4 boxes, each 100px wide (no margins).
12. 12.✍️ Which property is set to 8px in this rule?
    p {
      padding: 8px;
      width: 300px;
    } (a) 8px (b) border (c) padding (d) font-weight
13. 13.📱 The screen is 375px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 8px;
      }
    }
14. 14.✍️ In color: blue; which part is the property? (a) : (b) ; (c) blue (d) color
15. 15.⚖️ What colour is the text of this element?
    <h2 class="red" id="hero">Hi</h2>
    CSS:
    h2 { color: black; }
    h2 { color: red; } (a) black (b) purple (c) red (d) orange
16. 16.📦 In the box model, which part is space inside the border? (a) margin (b) padding (c) border (d) content
17. 17.What does font-weight do? (a) makes letters bigger (b) picks the font style (c) makes the text bold (d) centres a heading
18. 18.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <li id="logo"> (c) <h1> (d) <h2 class="menu">
19. 19.⚖️ What colour is the text of this element?
    <h2 class="box" id="end">Hi</h2>
    CSS:
    #end { color: green; }
    #end { color: red; } (a) orange (b) purple (c) red (d) green
20. 20.⚖️ Two rules with the same selector set a colour. Which one wins? (a) neither (b) the later one (c) the first one (d) the shorter one
21. 21.🖌️ What colour are the letters?
    h1 {
      background-color: black;
      text-align: left;
      font-size: 20px;
      color: blue;
    } (a) green (b) black (c) blue
22. 22.🌈 Which colour is #0000ff? (a) white (b) red (c) magenta (d) blue
23. 23.True or false: HTML reacts to a button click. (a) True (b) False
24. 24.What does font-size do? (a) centres a heading (b) makes letters bigger (c) picks the font style (d) colours behind the text
25. 25.⚖️ What colour is the text of this element?
    <h2 class="note" id="logo">Hi</h2>
    CSS:
    h2 { color: red; }
    h2 { color: black; } (a) black (b) purple (c) red (d) green
26. 26.✍️ Which property is set to 300px in this rule?
    body {
      width: 300px;
      font-style: italic;
      background-color: yellow;
    } (a) font-style (b) color (c) width (d) 300px
27. 27.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎨 Which attribute adds CSS inside one tag? (a) src (b) alt (c) href (d) style
29. 29.True or false: margin is the gap round content. (a) True (b) False
30. 30.⚖️ What colour is the text of this element?
    <p class="big" id="top">Hi</p>
    CSS:
    .big { color: black; }
    #top { color: blue; }
    p { color: green; } (a) black (b) green (c) purple (d) blue
31. 31.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 180px;
      padding: 25px;
      border: 4px solid black;
      margin: 15px;
    }
32. 32.📱 Which tag helps phones show a page at the right size? (a) the viewport meta tag (b) the hr tag (c) the title tag (d) the br tag
33. 33.🖌️ How big is the text, in px?
    li {
      font-size: 28px;
      background-color: blue;
      text-align: right;
      color: green;
    }
34. 34.⚖️ Which selector is the weakest? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) .intro (b) span (c) #main (d) div
36. 36.📱 The screen is 414px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (min-width: 480px) {
      p {
        font-size: 20px;
      }
    }
37. 37.What does justify-content: flex-start do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the end (d) packs boxes at the start
38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: center;
    }
    Inside are 4 boxes, each 40px wide (no margins).
39. 39.🎯 Can many elements share the same class? (a) Yes (b) No
40. 40.📱 The screen is 700px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 28px;
      }
    }

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