CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 146 · 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.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
   .box {
     width: 270px;
     padding: 25px;
     border: 1px solid black;
     margin: 0px;
   }
2. 2.🖌️ Which CSS property makes letters bigger? (a) font-size (b) font-weight (c) background-color (d) color
3. 3.💪 How much empty space (px) is left after the last box?
   .row {
     display: flex;
     width: 430px;
     justify-content: flex-start;
   }
   Inside are 4 boxes, each 100px wide (no margins).
4. 4.True or false: CSS lays out the page. (a) False (b) True
5. 5.Which of these does CSS do? (a) puts a picture on a page (b) changes the text size (c) gives the page structure (d) makes a link
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="big" id="main">Hello</h1> (a) .main (b) h1 (c) .red (d) #logo
7. 7.✍️ Which property is set to 20px in this rule?
   h1 {
     font-size: 20px;
     text-align: center;
     padding: 8px;
   } (a) 20px (b) text-align (c) font-size (d) background-color
8. 8.💪 Which justify-content value packs boxes at the start? (a) center (b) space-between (c) flex-start (d) flex-end
9. 9.🌈 Which colour of light is strongest in rgb(38, 152, 71)? (a) green (b) blue (c) red
10. 10.🌈 Which colour is #000000? (a) red (b) bright green (c) black (d) magenta
11. 11.What does font-size do? (a) makes letters bigger (b) centres a heading (c) sets the letter colour (d) colours behind the text
12. 12.🔍 Which is the odd one out? (a) gives the page structure (b) adds space around boxes (c) sets colours and fonts (d) changes the text size
13. 13.⚖️ What colour is the text of this element?
    <p class="box" id="logo">Hi</p>
    CSS:
    #logo { color: white; }
    #logo { color: yellow; } (a) yellow (b) blue (c) green (d) white
14. 14.True or false: .menu is an id selector. (a) True (b) False
15. 15.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: center;
    }
    Inside are 2 boxes, each 50px wide (no margins).
16. 16.True or false: margin is space outside the border. (a) True (b) False
17. 17.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <p id="box"> (c) <p class="box"> (d) <h1 class="menu">
18. 18.🎯 Can many elements share the same class? (a) No (b) Yes
19. 19.True or false: the content is the text or picture. (a) True (b) False
20. 20.⚖️ What colour is the text of this element?
    <h2 class="menu" id="logo">Hi</h2>
    CSS:
    h2 { color: blue; }
    .menu { color: yellow; } (a) purple (b) black (c) yellow (d) blue
21. 21.🌈 Which colour is rgb(255, 255, 255)? (a) magenta (b) yellow (c) blue (d) white
22. 22.✍️ What is the selector in this CSS rule?
    h1 {
      color: red;
      border: 2px solid;
      font-weight: bold;
    } (a) color (b) 2px solid (c) p (d) h1
23. 23.🖌️ Which CSS property colours behind the text? (a) font-weight (b) background-color (c) text-align (d) color
24. 24.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-start;
    }
    Inside are 4 boxes, each 40px wide (no margins).
25. 25.🔍 Which is the odd one out? (a) shows a pop-up message (b) changes the text size (c) counts down a timer (d) changes the page live
26. 26.Which of these does CSS do? (a) checks a quiz answer (b) puts a picture on a page (c) gives the page structure (d) adds space around boxes
27. 27.🌈 Which hex code is blue? (a) #ffffff (b) #00ffff (c) #0000ff (d) #000000
28. 28.Which of these is margin? (a) a solid or dotted edge (b) the text or picture (c) space outside the border (d) the gap round content
29. 29.✍️ How does a CSS comment start? (a) <!-- (b) // (c) /* (d) #
30. 30.📱 The screen is 320px wide. Does the rule inside @media apply?
    p {
      font-size: 20px;
    }
    @media (min-width: 1024px) {
      p {
        font-size: 24px;
      }
    } (a) No (b) Yes
31. 31.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 140px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
32. 32.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
    .box {
      width: 170px;
      padding: 20px;
      border: 3px solid black;
      margin: 5px;
    }
33. 33.⚖️ What colour is the text of this element?
    <h2 class="box" id="main">Hi</h2>
    CSS:
    h2 { color: yellow; }
    .box { color: red; }
    #main { color: black; } (a) orange (b) black (c) red (d) yellow
34. 34.True or false: CSS puts a picture on a page. (a) True (b) False
35. 35.🌈 Which colour of light is strongest in rgb(15, 86, 181)? (a) green (b) blue (c) red
36. 36.📱 The screen is 375px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 6px;
      }
    } (a) Yes (b) No
37. 37.🌈 In #rrggbb, which colour do the last two digits give? (a) green (b) red (c) white (d) blue
38. 38.What does justify-content: flex-end do? (a) packs boxes at the end (b) equal gaps, none at ends (c) packs boxes at the start (d) puts boxes in the middle
39. 39.🔍 Which is the odd one out? (a) makes headings and lists (b) sets colours and fonts (c) changes the text size (d) lays out the page
40. 40.🖌️ What colour are the letters?
    p {
      text-align: right;
      color: yellow;
      font-size: 20px;
      background-color: orange;
    } (a) yellow (b) orange (c) white

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