CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 785 · 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) white (b) red (c) blue (d) green
2. 2.💪 Which flexbox property spaces boxes along a row? (a) gap (b) display: flex (c) flex-direction (d) justify-content
3. 3.🌈 Which colour is rgb(255, 0, 255)? (a) blue (b) bright green (c) black (d) magenta
4. 4.✍️ Which sign ends each CSS declaration? (a) : (b) . (c) ; (d) ,
5. 5.🧩 Which language reacts to a button click? (a) HTML (b) CSS (c) JavaScript
6. 6.⚖️ What colour is the text of this element?
   <h2 class="big" id="main">Hi</h2>
   CSS:
   .big { color: purple; }
   h2 { color: blue; }
   #main { color: white; } (a) white (b) blue (c) orange (d) purple
7. 7.📦 How much space across (px) does this box take in all, margin included?
   .box {
     width: 120px;
     padding: 30px;
     border: 2px solid black;
     margin: 15px;
   }
8. 8.✍️ What value is given to text-align in this rule?
   p {
     text-align: center;
     font-size: 20px;
     font-style: italic;
   } (a) yellow (b) 10px (c) center (d) text-align
9. 9.📦 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: 2px solid black;
     margin: 10px;
   }
10. 10.⚖️ What colour is the text of this element?
    <p class="note" id="hero">Hi</p>
    CSS:
    #hero { color: white; }
    #hero { color: orange; } (a) yellow (b) white (c) green (d) orange
11. 11.🖌️ What colour is behind the letters?
    h1 {
      background-color: red;
      font-size: 24px;
      color: blue;
      text-align: left;
    } (a) blue (b) orange (c) red
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) .logo (b) h1 (c) #end (d) p
13. 13.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 120px;
      justify-content: flex-end;
    }
    Inside are 2 boxes, each 40px wide (no margins).
14. 14.✍️ CSS declarations go inside which brackets? (a) < > (b) ( ) (c) { } (d) [ ]
15. 15.💪 Which flexbox property lines boxes up across? (a) flex-direction (b) display: flex (c) justify-content (d) align-items
16. 16.📱 The screen is 375px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (max-width: 1024px) {
      p {
        font-size: 6px;
      }
    } (a) Yes (b) No
17. 17.🌈 Which colour of light is strongest in rgb(22, 78, 153)? (a) green (b) red (c) blue
18. 18.✍️ How does a CSS comment start? (a) // (b) <!-- (c) /* (d) #
19. 19.📱 The screen is 820px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (min-width: 600px) {
      p {
        font-size: 30px;
      }
    }
20. 20.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) flex-end (c) space-between (d) center
21. 21.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 110px;
      padding: 5px;
      border: 3px solid black;
      margin: 5px;
    }
22. 22.💪 Which justify-content value packs boxes at the start? (a) space-between (b) flex-end (c) center (d) flex-start
23. 23.🖌️ How big is the text, in px?
    h2 {
      font-size: 20px;
      text-align: center;
      color: yellow;
      background-color: red;
    }
24. 24.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .end (b) #hero (c) h1 (d) #end
25. 25.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
26. 26.What does justify-content: flex-start do? (a) puts boxes in the middle (b) packs boxes at the start (c) packs boxes at the end (d) equal gaps, none at ends
27. 27.✍️ Which property is set to 300px in this rule?
    h2 {
      background-color: yellow;
      color: red;
      font-size: 20px;
      width: 300px;
    } (a) font-style (b) 300px (c) color (d) width
28. 28.📱 What does a media query check? (a) the time of day (b) the screen width (c) the page title (d) the battery level
29. 29.✍️ What value is given to font-weight in this rule?
    h2 {
      font-weight: bold;
      margin: 10px;
    } (a) 2px solid (b) 300px (c) bold (d) font-weight
30. 30.🌈 Which colour of light is strongest in rgb(150, 108, 17)? (a) blue (b) green (c) red
31. 31.🖌️ How big is the text, in px?
    h2 {
      color: green;
      background-color: purple;
      font-size: 36px;
      text-align: right;
    }
32. 32.🖌️ Where does the text sit on its line?
    li {
      text-align: left;
      background-color: black;
      font-size: 28px;
      color: red;
    } (a) on the right (b) in the middle (c) on the left
33. 33.🌈 Which colour is #ff00ff? (a) red (b) black (c) magenta (d) blue
34. 34.⚖️ What colour is the text of this element?
    <h1 class="red" id="top">Hi</h1>
    CSS:
    h1 { color: red; }
    #top { color: purple; }
    .red { color: black; } (a) purple (b) red (c) yellow (d) black
35. 35.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 460px;
      justify-content: center;
    }
    Inside are 4 boxes, each 100px wide (no margins).
36. 36.🌈 Which colour is #ffffff? (a) cyan (b) black (c) white (d) bright green
37. 37.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 50px wide (no margins).
38. 38.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
39. 39.📱 The screen is 540px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 24px;
    }
    @media (min-width: 768px) {
      p {
        font-size: 28px;
      }
    }
40. 40.💪 Which justify-content value puts boxes in the middle? (a) flex-end (b) flex-start (c) space-between (d) center

Free html and css lessons, practice and worksheets at talentjr.in/html-css-for-kids