CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 15 · 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.True or false: .star is an id selector. (a) False (b) True
2. 2.⚖️ What colour is the text of this element?
   <h1 class="note" id="logo">Hi</h1>
   CSS:
   h1 { color: purple; }
   #logo { color: red; } (a) red (b) orange (c) purple (d) green
3. 3.✍️ What value is given to padding in this rule?
   p {
     font-size: 20px;
     padding: 8px;
   } (a) 8px (b) bold (c) 2px solid (d) padding
4. 4.📱 Responsive design means a page ___. (a) has no pictures (b) never changes (c) fits every screen (d) is only for laptops
5. 5.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
   .box {
     width: 100px;
     padding: 25px;
     border: 1px solid black;
     margin: 0px;
   }
6. 6.📱 max-width: 600px applies when the screen is ___. (a) turned off (b) 600px or narrower (c) 600px or wider (d) exactly 1000px
7. 7.Which of these does CSS do? (a) sets colours and fonts (b) shows a pop-up message (c) changes the page live (d) checks a quiz answer
8. 8.⚖️ Which selector is the strongest? (a) a class selector (b) an element selector (c) an id selector
9. 9.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the later one (b) the first one (c) neither (d) the shorter one
10. 10.True or false: CSS reacts to a button click. (a) False (b) True
11. 11.🌈 Which colour is rgb(255, 255, 0)? (a) red (b) yellow (c) white (d) magenta
12. 12.🧩 Which language reacts to a button click? (a) CSS (b) JavaScript (c) HTML
13. 13.✍️ What is the selector in this CSS rule?
    h2 {
      color: red;
      font-weight: bold;
      background-color: yellow;
      font-style: italic;
    } (a) bold (b) h2 (c) color (d) h1
14. 14.True or false: padding is space inside the border. (a) False (b) True
15. 15.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 330px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 60px wide (no margins).
16. 16.🖌️ Where does the text sit on its line?
    h2 {
      text-align: left;
      background-color: black;
      font-size: 36px;
      color: orange;
    } (a) on the left (b) on the right (c) in the middle
17. 17.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
18. 18.Which of these does JavaScript do? (a) adds space around boxes (b) changes the page live (c) rounds box corners (d) sets colours and fonts
19. 19.🌈 In #rrggbb, which colour do the last two digits give? (a) blue (b) white (c) red (d) green
20. 20.True or false: CSS rounds box corners. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #logo (b) .main (c) .note (d) .big
22. 22.📱 The screen is 700px wide. Does the rule inside @media apply?
    p {
      font-size: 20px;
    }
    @media (max-width: 768px) {
      p {
        font-size: 16px;
      }
    } (a) Yes (b) No
23. 23.✍️ What is the selector in this CSS rule?
    h2 {
      padding: 8px;
      font-weight: bold;
      text-align: center;
      width: 300px;
    } (a) h2 (b) padding (c) bold (d) h1
24. 24.🧩 Which language gives the page structure? (a) CSS (b) HTML (c) JavaScript
25. 25.🔍 Which is the odd one out? (a) rounds box corners (b) checks a quiz answer (c) shows a pop-up message (d) reacts to a button click
26. 26.True or false: margin is space outside the border. (a) False (b) True
27. 27.📱 The screen is 1100px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (max-width: 1024px) {
      p {
        font-size: 6px;
      }
    }
28. 28.🌈 In #2a0000 the red part is the hex number 2a. What is it as a normal number?
29. 29.📱 The screen is 540px wide. Does the rule inside @media apply?
    p {
      font-size: 16px;
    }
    @media (min-width: 480px) {
      p {
        font-size: 24px;
      }
    } (a) No (b) Yes
30. 30.📱 What does a media query check? (a) the time of day (b) the page title (c) the screen width (d) the battery level
31. 31.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 200px;
      padding: 30px;
      border: 5px solid black;
      margin: 5px;
    }
32. 32.⚖️ What colour is the text of this element?
    <h2 class="big" id="main">Hi</h2>
    CSS:
    #main { color: black; }
    .big { color: purple; }
    h2 { color: orange; } (a) orange (b) green (c) purple (d) black
33. 33.✍️ What is the selector in this CSS rule?
    .box {
      font-style: italic;
      background-color: yellow;
    } (a) font-style (b) .box (c) yellow (d) h2
34. 34.💪 Which flexbox property turns on flexbox? (a) justify-content (b) gap (c) flex-direction (d) display: flex
35. 35.⚖️ What colour is the text of this element?
    <p class="box" id="hero">Hi</p>
    CSS:
    #hero { color: purple; }
    p { color: white; } (a) blue (b) white (c) purple (d) black
36. 36.Which of these does JavaScript do? (a) makes a link (b) rounds box corners (c) reacts to a button click (d) sets colours and fonts
37. 37.📱 min-width: 800px applies when the screen is ___. (a) 800px or narrower (b) exactly 100px (c) 800px or wider (d) turned off
38. 38.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 180px;
      justify-content: space-between;
    }
    Inside are 2 boxes, each 60px wide (no margins).
39. 39.🎯 Can many elements share the same class? (a) No (b) Yes
40. 40.🧩 Which language shows a pop-up message? (a) CSS (b) HTML (c) JavaScript

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