CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 298 · 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.🌈 In #rrggbb, which colour do the last two digits give? (a) blue (b) white (c) green (d) red
2. 2.✍️ How many declarations (property: value pairs) are in this rule?
   p {
     background-color: yellow;
     color: red;
     text-align: center;
   }
3. 3.What does font-size do? (a) centres a heading (b) sets the letter colour (c) picks the font style (d) makes letters bigger
4. 4.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
   p {
     font-size: 24px;
   }
   @media (min-width: 600px) {
     p {
       font-size: 32px;
     }
   }
5. 5.✍️ Which property is set to 8px in this rule?
   li {
     text-align: center;
     padding: 8px;
     background-color: yellow;
   } (a) 8px (b) border (c) font-weight (d) padding
6. 6.What does font-weight do? (a) centres a heading (b) makes the text bold (c) picks the font style (d) makes letters bigger
7. 7.✍️ What is the selector in this CSS rule?
   #top {
     background-color: yellow;
     color: red;
     text-align: center;
   } (a) red (b) li (c) background-color (d) #top
8. 8.📱 Responsive design means a page ___. (a) fits every screen (b) has no pictures (c) is only for laptops (d) never changes
9. 9.True or false: #main is an id selector. (a) False (b) True
10. 10.Which of these does JavaScript do? (a) rounds box corners (b) checks a quiz answer (c) makes headings and lists (d) sets colours and fonts
11. 11.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
12. 12.🔍 Which is the odd one out? (a) adds space around boxes (b) lays out the page (c) changes the text size (d) makes headings and lists
13. 13.🌈 Which colour is #ff00ff? (a) white (b) yellow (c) red (d) magenta
14. 14.🖌️ What colour is behind the letters?
    p {
      text-align: left;
      background-color: black;
      font-size: 32px;
      color: blue;
    } (a) blue (b) green (c) black
15. 15.⚖️ Which selector is the weakest? (a) an id selector (b) a class selector (c) an element selector
16. 16.What does justify-content: flex-start do? (a) packs boxes at the end (b) puts boxes in the middle (c) packs boxes at the start (d) equal gaps, none at ends
17. 17.🌈 Which colour is #ff0000? (a) yellow (b) red (c) cyan (d) blue
18. 18.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 290px;
      padding: 30px;
      border: 1px solid black;
      margin: 10px;
    }
19. 19.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 360px;
      justify-content: center;
    }
    Inside are 4 boxes, each 50px wide (no margins).
20. 20.⚖️ What colour is the text of this element?
    <h2 class="box" id="intro">Hi</h2>
    CSS:
    .box { color: blue; }
    #intro { color: black; } (a) black (b) red (c) blue (d) orange
21. 21.📱 The screen is 820px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 32px;
      }
    }
22. 22.🧩 Which language shows a pop-up message? (a) JavaScript (b) CSS (c) HTML
23. 23.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) h1 (b) .intro (c) #main (d) .box
24. 24.💪 Which flexbox property picks row or column? (a) flex-direction (b) align-items (c) justify-content (d) gap
25. 25.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 90px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 40px wide (no margins).
26. 26.📱 min-width: 800px applies when the screen is ___. (a) turned off (b) 800px or wider (c) 800px or narrower (d) exactly 100px
27. 27.🌈 Which colour of light is strongest in rgb(174, 97, 75)? (a) red (b) green (c) blue
28. 28.True or false: JavaScript checks a quiz answer. (a) True (b) False
29. 29.⚖️ What colour is the text of this element?
    <p class="big" id="end">Hi</p>
    CSS:
    p { color: orange; }
    p { color: red; } (a) orange (b) blue (c) white (d) red
30. 30.🖌️ How big is the text, in px?
    h1 {
      font-size: 40px;
      text-align: left;
      color: red;
      background-color: white;
    }
31. 31.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 150px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
32. 32.📱 The screen is 540px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 18px;
      }
    } (a) Yes (b) No
33. 33.True or false: CSS checks a quiz answer. (a) False (b) True
34. 34.⚖️ What colour is the text of this element?
    <h2 class="note" id="logo">Hi</h2>
    CSS:
    #logo { color: purple; }
    #logo { color: white; } (a) green (b) purple (c) white (d) red
35. 35.✍️ How does a CSS comment start? (a) <!-- (b) // (c) # (d) /*
36. 36.📱 Which tag helps phones show a page at the right size? (a) the hr tag (b) the br tag (c) the title tag (d) the viewport meta tag
37. 37.🌈 Which hex code is yellow? (a) #ffff00 (b) #ff00ff (c) #000000 (d) #0000ff
38. 38.📱 The screen is 1366px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (max-width: 1024px) {
      p {
        font-size: 14px;
      }
    }
39. 39.📱 The screen is 320px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (min-width: 1024px) {
      p {
        font-size: 20px;
      }
    } (a) Yes (b) No
40. 40.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <span class="star"> (d) <p class="note">

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