CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 190 · 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.What does background-color do? (a) sets the letter colour (b) makes the text bold (c) picks the font style (d) colours behind the text
2. 2.🖌️ What colour are the letters?
   h2 {
     background-color: orange;
     color: purple;
     font-size: 28px;
     text-align: center;
   } (a) purple (b) orange (c) black
3. 3.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
4. 4.🌈 Which colour is #0000ff? (a) cyan (b) white (c) blue (d) magenta
5. 5.🖌️ Which CSS property sets the letter colour? (a) background-color (b) color (c) font-family (d) font-weight
6. 6.📱 Responsive design means a page ___. (a) never changes (b) has no pictures (c) is only for laptops (d) fits every screen
7. 7.🔍 Which is the odd one out? (a) shows a pop-up message (b) changes the page live (c) puts a picture on a page (d) reacts to a button click
8. 8.💪 Which justify-content value packs boxes at the start? (a) space-between (b) center (c) flex-start (d) flex-end
9. 9.🌈 Which colour of light is strongest in rgb(44, 201, 33)? (a) blue (b) green (c) red
10. 10.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
11. 11.What does justify-content: flex-end do? (a) puts boxes in the middle (b) equal gaps, none at ends (c) packs boxes at the start (d) packs boxes at the end
12. 12.🎯 Can many elements share the same class? (a) Yes (b) No
13. 13.⚖️ What colour is the text of this element?
    <h2 class="note" id="end">Hi</h2>
    CSS:
    #end { color: black; }
    #end { color: green; } (a) blue (b) green (c) yellow (d) black
14. 14.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
15. 15.True or false: padding is space inside the border. (a) False (b) True
16. 16.✍️ How does a CSS comment start? (a) <!-- (b) /* (c) // (d) #
17. 17.🌈 In #0f0000 the red part is the hex number 0f. What is it as a normal number?
18. 18.✍️ In color: blue; which part is the value? (a) color (b) : (c) blue (d) ;
19. 19.📱 The screen is 1100px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 16px;
    }
    @media (max-width: 1024px) {
      p {
        font-size: 12px;
      }
    }
20. 20.✍️ Which property is set to 300px in this rule?
    #top {
      text-align: center;
      width: 300px;
    } (a) font-style (b) color (c) width (d) 300px
21. 21.📱 What does a media query check? (a) the page title (b) the screen width (c) the time of day (d) the battery level
22. 22.✍️ What is the selector in this CSS rule?
    #top {
      background-color: yellow;
      font-weight: bold;
      font-size: 20px;
      margin: 10px;
    } (a) li (b) bold (c) #top (d) background-color
23. 23.What does font-family do? (a) makes the text bold (b) picks the font style (c) centres a heading (d) makes letters bigger
24. 24.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
25. 25.Which of these is the content? (a) the gap round content (b) the text or picture (c) a solid or dotted edge (d) the line round the box
26. 26.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 220px;
      justify-content: center;
    }
    Inside are 2 boxes, each 80px wide (no margins).
27. 27.⚖️ What colour is the text of this element?
    <h1 class="box" id="intro">Hi</h1>
    CSS:
    #intro { color: green; }
    .box { color: purple; }
    h1 { color: blue; } (a) blue (b) white (c) purple (d) green
28. 28.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
29. 29.🌈 In #rrggbb, which colour do the last two digits give? (a) red (b) blue (c) white (d) green
30. 30.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the shorter one (b) the first one (c) the later one (d) neither
31. 31.📱 The screen is 375px wide. Does the rule inside @media apply?
    p {
      font-size: 16px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 10px;
      }
    } (a) No (b) Yes
32. 32.💪 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).
33. 33.True or false: CSS reacts to a button click. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .top (b) li (c) div (d) #intro
35. 35.What does font-weight do? (a) makes the text bold (b) colours behind the text (c) sets the letter colour (d) centres a heading
36. 36.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 3 (b) 2 (c) 4 (d) 6
37. 37.🌈 Which hex code is yellow? (a) #00ff00 (b) #000000 (c) #ffff00 (d) #ff00ff
38. 38.💪 Which flexbox property spaces boxes along a row? (a) align-items (b) flex-direction (c) gap (d) justify-content
39. 39.⚖️ What colour is the text of this element?
    <h1 class="red" id="hero">Hi</h1>
    CSS:
    #hero { color: black; }
    #hero { color: blue; } (a) black (b) blue (c) white (d) red
40. 40.⚖️ What colour is the text of this element?
    <h1 class="red" id="logo">Hi</h1>
    CSS:
    #logo { color: white; }
    h1 { color: red; }
    .red { color: blue; } (a) blue (b) red (c) purple (d) white

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