CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 381 · 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 CSS selector matches this element?
   <h2 class="box" id="intro">Hello</h2> (a) #main (b) #box (c) li (d) h2
2. 2.✍️ Which property is set to 8px in this rule?
   h1 {
     width: 300px;
     text-align: center;
     padding: 8px;
   } (a) font-weight (b) 8px (c) padding (d) border
3. 3.True or false: li is an id selector. (a) False (b) True
4. 4.✍️ What is the selector in this CSS rule?
   body {
     text-align: center;
     margin: 10px;
     padding: 8px;
   } (a) text-align (b) .box (c) 10px (d) body
5. 5.📦 How much space top to bottom (px) does this box take in all, margin included?
   .box {
     height: 150px;
     padding: 5px;
     border: 1px solid black;
     margin: 0px;
   }
6. 6.💪 Which justify-content value equal gaps, none at ends? (a) flex-end (b) center (c) space-between (d) flex-start
7. 7.📱 min-width: 800px applies when the screen is ___. (a) turned off (b) 800px or wider (c) 800px or narrower (d) exactly 100px
8. 8.🌈 What is the biggest number one colour can have in rgb()? (a) 1000 (b) 100 (c) 99 (d) 255
9. 9.🎯 Which CSS selector matches this element?
   <p class="red" id="top">Hello</p> (a) #top (b) #red (c) .top (d) .box
10. 10.🌈 Which colour of light is strongest in rgb(61, 251, 7)? (a) blue (b) red (c) green
11. 11.🖌️ What colour are the letters?
    li {
      text-align: left;
      background-color: white;
      color: purple;
      font-size: 16px;
    } (a) green (b) white (c) purple
12. 12.🧩 Which language rounds box corners? (a) JavaScript (b) HTML (c) CSS
13. 13.⚖️ What colour is the text of this element?
    <h2 class="box" id="hero">Hi</h2>
    CSS:
    h2 { color: red; }
    h2 { color: purple; } (a) white (b) yellow (c) purple (d) red
14. 14.True or false: #logo is an id selector. (a) True (b) False
15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 200px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 60px wide (no margins).
16. 16.📱 Responsive design means a page ___. (a) has no pictures (b) is only for laptops (c) fits every screen (d) never changes
17. 17.⚖️ What colour is the text of this element?
    <h1 class="menu" id="main">Hi</h1>
    CSS:
    h1 { color: green; }
    h1 { color: purple; } (a) blue (b) purple (c) black (d) green
18. 18.🧩 Which language adds space around boxes? (a) HTML (b) JavaScript (c) CSS
19. 19.💪 Which flexbox property lines boxes up across? (a) gap (b) flex-direction (c) justify-content (d) align-items
20. 20.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-end (c) center (d) flex-start
21. 21.True or false: .card is an element selector. (a) True (b) False
22. 22.What does font-size do? (a) picks the font style (b) colours behind the text (c) makes letters bigger (d) centres a heading
23. 23.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 270px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 50px wide (no margins).
24. 24.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 190px;
      padding: 20px;
      border: 2px solid black;
      margin: 10px;
    }
25. 25.Which of these does HTML do? (a) adds space around boxes (b) sets colours and fonts (c) changes the page live (d) makes headings and lists
26. 26.True or false: CSS puts a picture on a page. (a) True (b) False
27. 27.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
    .box {
      width: 210px;
      padding: 10px;
      border: 4px solid black;
      margin: 0px;
    }
28. 28.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) black (c) blue (d) green
29. 29.What does justify-content: flex-start do? (a) packs boxes at the start (b) packs boxes at the end (c) puts boxes in the middle (d) equal gaps, none at ends
30. 30.📦 In the box model, which part is space outside the border? (a) margin (b) content (c) border (d) padding
31. 31.🖌️ Where does the text sit on its line?
    li {
      background-color: black;
      text-align: right;
      font-size: 12px;
      color: yellow;
    } (a) on the left (b) on the right (c) in the middle
32. 32.True or false: the content is space outside the border. (a) False (b) True
33. 33.🌈 Which colour is #ffff00? (a) yellow (b) black (c) blue (d) bright green
34. 34.🌈 Which colour is rgb(0, 255, 0)? (a) bright green (b) white (c) blue (d) red
35. 35.📱 The screen is 1100px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 16px;
      }
    }
36. 36.📦 In the box model, which part is the line round the box? (a) content (b) padding (c) margin (d) border
37. 37.🌈 Which colour of light is strongest in rgb(204, 77, 48)? (a) green (b) blue (c) red
38. 38.✍️ Which sign ends each CSS declaration? (a) : (b) , (c) ; (d) .
39. 39.🖌️ What colour are the letters?
    li {
      background-color: black;
      font-size: 32px;
      text-align: center;
      color: yellow;
    } (a) black (b) blue (c) yellow
40. 40.🌈 In #530000 the red part is the hex number 53. What is it as a normal number?

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