CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 352 · 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.📱 The screen is 414px wide. Does the rule inside @media apply?
   p {
     font-size: 20px;
   }
   @media (min-width: 600px) {
     p {
       font-size: 22px;
     }
   } (a) Yes (b) No
2. 2.True or false: .big is an id selector. (a) True (b) False
3. 3.What does justify-content: space-between do? (a) packs boxes at the end (b) packs boxes at the start (c) equal gaps, none at ends (d) puts boxes in the middle
4. 4.🔍 Which is the odd one out? (a) adds space around boxes (b) makes a link (c) puts a picture on a page (d) gives the page structure
5. 5.📦 In the box model, which part is the text or picture? (a) margin (b) padding (c) border (d) content
6. 6.📱 The screen is 820px wide. Does the rule inside @media apply?
   p {
     font-size: 24px;
   }
   @media (max-width: 480px) {
     p {
       font-size: 22px;
     }
   } (a) No (b) Yes
7. 7.📱 The screen is 320px wide. What font-size (px) does the paragraph get?
   p {
     font-size: 12px;
   }
   @media (min-width: 600px) {
     p {
       font-size: 14px;
     }
   }
8. 8.🖌️ Where does the text sit on its line?
   h1 {
     font-size: 12px;
     background-color: yellow;
     text-align: right;
     color: purple;
   } (a) on the left (b) on the right (c) in the middle
9. 9.🖌️ What colour is behind the letters?
   li {
     background-color: white;
     font-size: 20px;
     text-align: center;
     color: purple;
   } (a) blue (b) purple (c) white
10. 10.🌈 In #005600 the green part is the hex number 56. What is it as a normal number?
11. 11.⚖️ What colour is the text of this element?
    <p class="star" id="hero">Hi</p>
    CSS:
    .star { color: white; }
    .star { color: purple; } (a) white (b) orange (c) purple (d) black
12. 12.💪 Which justify-content value packs boxes at the end? (a) center (b) flex-end (c) space-between (d) flex-start
13. 13.💪 Which flexbox property lines boxes up across? (a) align-items (b) flex-direction (c) justify-content (d) gap
14. 14.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 60px;
      padding: 15px;
      border: 4px solid black;
      margin: 5px;
    }
15. 15.⚖️ What colour is the text of this element?
    <h2 class="menu" id="hero">Hi</h2>
    CSS:
    h2 { color: orange; }
    h2 { color: red; } (a) black (b) red (c) green (d) orange
16. 16.🧩 Which language gives the page structure? (a) HTML (b) JavaScript (c) CSS
17. 17.Which of these does CSS do? (a) lays out the page (b) counts down a timer (c) checks a quiz answer (d) shows a pop-up message
18. 18.🔍 Which is the odd one out? (a) sets colours and fonts (b) adds space around boxes (c) changes the text size (d) counts down a timer
19. 19.🌈 In #rrggbb, which colour do the first two digits give? (a) green (b) blue (c) red (d) black
20. 20.📦 How wide (px) is this box from the outer edge of its left border to the outer edge of its right border?
    .box {
      width: 220px;
      padding: 30px;
      border: 4px solid black;
      margin: 5px;
    }
21. 21.What does justify-content: flex-start do? (a) equal gaps, none at ends (b) packs boxes at the end (c) packs boxes at the start (d) puts boxes in the middle
22. 22.True or false: JavaScript changes the page live. (a) False (b) True
23. 23.⚖️ Which selector is the weakest? (a) an id selector (b) a class selector (c) an element selector
24. 24.🔍 Which is the odd one out? (a) shows a pop-up message (b) lays out the page (c) adds space around boxes (d) rounds box corners
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) #main (b) .intro (c) .star (d) #star
26. 26.⚖️ What colour is the text of this element?
    <p class="note" id="top">Hi</p>
    CSS:
    .note { color: green; }
    p { color: red; }
    #top { color: white; } (a) yellow (b) white (c) green (d) red
27. 27.📱 The screen is 700px wide. Does the rule inside @media apply?
    p {
      font-size: 24px;
    }
    @media (max-width: 480px) {
      p {
        font-size: 20px;
      }
    } (a) No (b) Yes
28. 28.🎯 Can many elements share the same class? (a) Yes (b) No
29. 29.🎯 Which CSS selector matches this element?
    <li class="menu" id="intro">Hello</li> (a) #main (b) li (c) .note (d) #menu
30. 30.⚖️ What colour is the text of this element?
    <h2 class="menu" id="intro">Hi</h2>
    CSS:
    #intro { color: blue; }
    .menu { color: white; }
    h2 { color: red; } (a) blue (b) red (c) white (d) black
31. 31.📱 The screen is 820px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 18px;
      }
    }
32. 32.💪 Which flexbox property turns on flexbox? (a) gap (b) justify-content (c) display: flex (d) align-items
33. 33.✍️ Which sign ends each CSS declaration? (a) . (b) ; (c) , (d) :
34. 34.🌈 In #rrggbb, which colour do the last two digits give? (a) red (b) white (c) blue (d) green
35. 35.✍️ How many declarations (property: value pairs) are in this rule?
    body {
      font-size: 20px;
      background-color: yellow;
      border: 2px solid;
      color: red;
    }
36. 36.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 160px;
      justify-content: center;
    }
    Inside are 3 boxes, each 40px wide (no margins).
37. 37.⚖️ What colour is the text of this element?
    <p class="big" id="hero">Hi</p>
    CSS:
    p { color: orange; }
    p { color: green; } (a) yellow (b) orange (c) green (d) blue
38. 38.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) .logo (b) #end (c) #logo (d) #red
39. 39.💪 How wide (px) is each gap between two boxes?
    .row {
      display: flex;
      width: 350px;
      justify-content: space-between;
    }
    Inside are 4 boxes, each 50px wide (no margins).
40. 40.📱 The screen is 375px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 22px;
      }
    }

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