CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 257 · 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 colour is the text of this element?
   <h1 class="big" id="hero">Hi</h1>
   CSS:
   h1 { color: purple; }
   #hero { color: white; } (a) purple (b) green (c) white (d) orange
2. 2.What does background-color do? (a) sets the letter colour (b) colours behind the text (c) makes letters bigger (d) picks the font style
3. 3.✍️ What is the selector in this CSS rule?
   .box {
     background-color: yellow;
     font-size: 20px;
   } (a) 20px (b) h2 (c) .box (d) background-color
4. 4.📱 max-width: 600px applies when the screen is ___. (a) exactly 1000px (b) turned off (c) 600px or narrower (d) 600px or wider
5. 5.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
   p {
     font-size: 12px;
   }
   @media (max-width: 1024px) {
     p {
       font-size: 10px;
     }
   }
6. 6.⚖️ Two rules with the same selector set a colour. Which one wins? (a) neither (b) the shorter one (c) the later one (d) the first one
7. 7.🧩 Which language changes the text size? (a) HTML (b) CSS (c) JavaScript
8. 8.🖌️ Which CSS property centres a heading? (a) font-size (b) font-weight (c) text-align (d) background-color
9. 9.📱 The screen is 700px wide. What font-size (px) does the paragraph get?
   p {
     font-size: 24px;
   }
   @media (min-width: 480px) {
     p {
       font-size: 32px;
     }
   }
10. 10.🖌️ What colour is behind the letters?
    h1 {
      font-size: 24px;
      background-color: blue;
      text-align: center;
      color: purple;
    } (a) blue (b) purple (c) green
11. 11.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 210px;
      padding: 30px;
      border: 5px solid black;
      margin: 5px;
    }
12. 12.⚖️ What colour is the text of this element?
    <h1 class="red" id="logo">Hi</h1>
    CSS:
    .red { color: red; }
    .red { color: green; } (a) white (b) blue (c) green (d) red
13. 13.True or false: #logo is an id selector. (a) True (b) False
14. 14.🖌️ Which CSS property colours behind the text? (a) font-family (b) text-align (c) background-color (d) font-weight
15. 15.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
16. 16.True or false: the content is the line round the box. (a) True (b) False
17. 17.🌈 Which colour is #ff0000? (a) magenta (b) red (c) black (d) cyan
18. 18.🌈 In #0000f4 the blue part is the hex number f4. What is it as a normal number?
19. 19.🔍 Which is the odd one out? (a) shows a pop-up message (b) changes the page live (c) reacts to a button click (d) gives the page structure
20. 20.💪 Which flexbox property turns on flexbox? (a) justify-content (b) flex-direction (c) gap (d) display: flex
21. 21.🌈 Which hex code is bright green? (a) #ff0000 (b) #00ff00 (c) #ff00ff (d) #0000ff
22. 22.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #main (b) #note (c) p (d) .big
23. 23.⚖️ What colour is the text of this element?
    <h2 class="red" id="end">Hi</h2>
    CSS:
    .red { color: orange; }
    h2 { color: red; } (a) green (b) orange (c) red (d) blue
24. 24.✍️ How does a CSS comment start? (a) <!-- (b) // (c) # (d) /*
25. 25.✍️ How many declarations (property: value pairs) are in this rule?
    body {
      margin: 10px;
      padding: 8px;
      width: 300px;
      border: 2px solid;
    }
26. 26.📱 The screen is 320px wide. Does the rule inside @media apply?
    p {
      font-size: 20px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 26px;
      }
    } (a) No (b) Yes
27. 27.✍️ Which property is set to 20px in this rule?
    .box {
      font-weight: bold;
      background-color: yellow;
      text-align: center;
      font-size: 20px;
    } (a) background-color (b) 20px (c) text-align (d) font-size
28. 28.🎯 Which element does the selector .menu style? (a) <span class="note"> (b) <span class="menu"> (c) <p class="big"> (d) <span id="menu">
29. 29.✍️ What is the selector in this CSS rule?
    li {
      font-weight: bold;
      font-size: 20px;
      text-align: center;
    } (a) body (b) font-weight (c) 20px (d) li
30. 30.🎯 Which element does the selector #intro style? (a) <li class="red"> (b) <h2 id="main"> (c) <h2 id="intro"> (d) <h2 class="intro">
31. 31.True or false: padding is the gap round content. (a) True (b) False
32. 32.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 210px;
      padding: 30px;
      border: 2px solid black;
      margin: 5px;
    }
33. 33.Which of these is padding? (a) the gap to other boxes (b) the gap round content (c) the line round the box (d) the text or picture
34. 34.🔍 Which is the odd one out? (a) makes a form box (b) makes a link (c) gives the page structure (d) changes the text size
35. 35.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) #box (b) div (c) .main (d) .box
36. 36.🔍 Which is the odd one out? (a) shows a pop-up message (b) changes the page live (c) adds space around boxes (d) checks a quiz answer
37. 37.⚖️ What colour is the text of this element?
    <h2 class="note" id="top">Hi</h2>
    CSS:
    #top { color: black; }
    #top { color: orange; } (a) black (b) blue (c) green (d) orange
38. 38.Which of these does JavaScript do? (a) puts a picture on a page (b) makes a link (c) reacts to a button click (d) adds space around boxes
39. 39.True or false: the border is the line round the box. (a) False (b) True
40. 40.True or false: #logo is a class selector. (a) False (b) True

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