CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 422 · 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 selector is the strongest? (a) a class selector (b) an element selector (c) an id selector
2. 2.🖌️ Which CSS property makes letters bigger? (a) background-color (b) font-size (c) font-family (d) color
3. 3.Which of these does JavaScript do? (a) puts a picture on a page (b) shows a pop-up message (c) gives the page structure (d) changes the text size
4. 4.🖌️ What colour is behind the letters?
   p {
     font-size: 20px;
     text-align: left;
     background-color: green;
     color: white;
   } (a) yellow (b) green (c) white
5. 5.What does font-size do? (a) makes letters bigger (b) colours behind the text (c) centres a heading (d) makes the text bold
6. 6.📦 How much space top to bottom (px) does this box take in all, margin included?
   .box {
     height: 140px;
     padding: 20px;
     border: 1px solid black;
     margin: 15px;
   }
7. 7.🖌️ Where does the text sit on its line?
   li {
     color: yellow;
     text-align: left;
     font-size: 32px;
     background-color: blue;
   } (a) in the middle (b) on the left (c) on the right
8. 8.✍️ What value is given to font-weight in this rule?
   body {
     font-weight: bold;
     padding: 8px;
     background-color: yellow;
   } (a) bold (b) font-weight (c) 300px (d) 2px solid
9. 9.What does justify-content: flex-end do? (a) puts boxes in the middle (b) packs boxes at the end (c) equal gaps, none at ends (d) packs boxes at the start
10. 10.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 260px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 100px wide (no margins).
11. 11.🌈 In #rrggbb, which colour do the last two digits give? (a) red (b) green (c) blue (d) white
12. 12.⚖️ What colour is the text of this element?
    <p class="big" id="end">Hi</p>
    CSS:
    .big { color: blue; }
    .big { color: white; } (a) blue (b) white (c) black (d) yellow
13. 13.🌈 What is the biggest number one colour can have in rgb()? (a) 1000 (b) 255 (c) 99 (d) 100
14. 14.🖌️ Which CSS property colours behind the text? (a) background-color (b) font-size (c) color (d) font-family
15. 15.📱 max-width: 600px applies when the screen is ___. (a) exactly 1000px (b) 600px or narrower (c) 600px or wider (d) turned off
16. 16.🌈 Which hex code is yellow? (a) #00ffff (b) #ffff00 (c) #ff0000 (d) #000000
17. 17.✍️ How many declarations (property: value pairs) are in this rule?
    h1 {
      color: red;
      width: 300px;
    }
18. 18.True or false: HTML puts a picture on a page. (a) False (b) True
19. 19.📱 The screen is 1366px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 32px;
      }
    }
20. 20.🖌️ Where does the text sit on its line?
    h1 {
      background-color: red;
      color: blue;
      text-align: left;
      font-size: 16px;
    } (a) on the right (b) in the middle (c) on the left
21. 21.✍️ Which sign ends each CSS declaration? (a) . (b) : (c) , (d) ;
22. 22.True or false: padding is space inside the border. (a) True (b) False
23. 23.📱 What does a media query check? (a) the time of day (b) the page title (c) the screen width (d) the battery level
24. 24.🌈 Which colour is #ff00ff? (a) black (b) magenta (c) blue (d) red
25. 25.🧩 Which language shows a pop-up message? (a) HTML (b) CSS (c) JavaScript
26. 26.🌈 In #00af00 the green part is the hex number af. What is it as a normal number?
27. 27.✍️ How does a CSS comment start? (a) <!-- (b) /* (c) // (d) #
28. 28.📱 The screen is 1366px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (max-width: 480px) {
      p {
        font-size: 16px;
      }
    }
29. 29.🎯 Which element does the selector li style? (a) <span class="big"> (b) <p id="hero"> (c) <div> (d) <li class="big">
30. 30.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 50px;
      padding: 15px;
      border: 5px solid black;
      margin: 5px;
    }
31. 31.💪 Which flexbox property sets space between boxes? (a) align-items (b) display: flex (c) gap (d) flex-direction
32. 32.✍️ What is the selector in this CSS rule?
    body {
      text-align: center;
      border: 2px solid;
      font-size: 20px;
    } (a) 2px solid (b) .box (c) body (d) text-align
33. 33.📱 The screen is 375px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 14px;
      }
    } (a) Yes (b) No
34. 34.🧩 Which language reacts to a button click? (a) HTML (b) CSS (c) JavaScript
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) #end (b) .big (c) #note (d) .note
36. 36.📱 min-width: 800px applies when the screen is ___. (a) exactly 100px (b) turned off (c) 800px or narrower (d) 800px or wider
37. 37.✍️ What is the selector in this CSS rule?
    h2 {
      font-style: italic;
      text-align: center;
      padding: 8px;
      font-size: 20px;
    } (a) center (b) h1 (c) h2 (d) font-style
38. 38.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 340px;
      justify-content: center;
    }
    Inside are 4 boxes, each 60px wide (no margins).
39. 39.📦 In the box model, which part is the gap to other boxes? (a) padding (b) border (c) margin (d) content
40. 40.True or false: JavaScript reacts to a button click. (a) True (b) False

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