CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 140 · 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 #710000 the red part is the hex number 71. What is it as a normal number?
2. 2.🎯 Which CSS selector matches this element?
   <p class="menu" id="top">Hello</p> (a) h1 (b) #intro (c) #menu (d) .menu
3. 3.💪 How much empty space (px) is before the first box?
   .row {
     display: flex;
     width: 220px;
     justify-content: center;
   }
   Inside are 2 boxes, each 60px wide (no margins).
4. 4.📦 How much space top to bottom (px) does this box take in all, margin included?
   .box {
     height: 180px;
     padding: 15px;
     border: 5px solid black;
     margin: 15px;
   }
5. 5.True or false: #main is an element selector. (a) False (b) True
6. 6.True or false: JavaScript changes the text size. (a) True (b) False
7. 7.🖌️ What colour are the letters?
   p {
     font-size: 28px;
     color: green;
     text-align: left;
     background-color: red;
   } (a) red (b) green (c) black
8. 8.🎯 Which CSS selector matches this element?
   <p class="note" id="main">Hello</p> (a) .main (b) h1 (c) #note (d) #main
9. 9.📱 What does a media query check? (a) the battery level (b) the page title (c) the screen width (d) the time of day
10. 10.✍️ In color: blue; which part is the property? (a) ; (b) : (c) color (d) blue
11. 11.🔍 Which is the odd one out? (a) adds space around boxes (b) shows a pop-up message (c) changes the page live (d) reacts to a button click
12. 12.🖌️ Which CSS property centres a heading? (a) text-align (b) font-weight (c) color (d) font-family
13. 13.📱 Responsive design means a page ___. (a) fits every screen (b) never changes (c) has no pictures (d) is only for laptops
14. 14.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="note"> (c) <li class="red"> (d) <h2 class="big">
15. 15.🖌️ How big is the text, in px?
    h2 {
      font-size: 36px;
      background-color: purple;
      color: green;
      text-align: left;
    }
16. 16.🧩 Which language lays out the page? (a) CSS (b) JavaScript (c) HTML
17. 17.True or false: .star is a class selector. (a) True (b) False
18. 18.✍️ What value is given to text-align in this rule?
    #top {
      font-style: italic;
      width: 300px;
      font-size: 20px;
      text-align: center;
    } (a) text-align (b) yellow (c) 10px (d) center
19. 19.✍️ What value is given to font-weight in this rule?
    h2 {
      font-size: 20px;
      font-style: italic;
      text-align: center;
      font-weight: bold;
    } (a) font-weight (b) bold (c) 300px (d) 2px solid
20. 20.⚖️ What colour is the text of this element?
    <p class="star" id="logo">Hi</p>
    CSS:
    .star { color: white; }
    p { color: orange; }
    #logo { color: black; } (a) white (b) black (c) orange (d) blue
21. 21.🧩 Which language puts a picture on a page? (a) HTML (b) CSS (c) JavaScript
22. 22.✍️ Which property is set to 300px in this rule?
    li {
      width: 300px;
      font-weight: bold;
    } (a) 300px (b) font-style (c) color (d) width
23. 23.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 240px;
      justify-content: flex-start;
    }
    Inside are 2 boxes, each 100px wide (no margins).
24. 24.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 300px;
      padding: 20px;
      border: 4px solid black;
      margin: 20px;
    }
25. 25.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) #intro (b) #star (c) .menu (d) .star
26. 26.🔍 Which is the odd one out? (a) checks a quiz answer (b) shows a pop-up message (c) sets colours and fonts (d) changes the page live
27. 27.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the shorter one (b) the later one (c) neither (d) the first one
28. 28.✍️ What value is given to margin in this rule?
    #top {
      font-style: italic;
      text-align: center;
      margin: 10px;
    } (a) 8px (b) bold (c) 10px (d) margin
29. 29.📦 In the box model, which part is the gap to other boxes? (a) content (b) border (c) margin (d) padding
30. 30.🔍 Which is the odd one out? (a) makes a form box (b) puts a picture on a page (c) gives the page structure (d) lays out the page
31. 31.📦 In the box model, which part is a solid or dotted edge? (a) padding (b) margin (c) border (d) content
32. 32.✍️ How many declarations (property: value pairs) are in this rule?
    p {
      background-color: yellow;
    }
33. 33.💪 Which flexbox property sets space between boxes? (a) justify-content (b) display: flex (c) align-items (d) gap
34. 34.📱 The screen is 375px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 20px;
    }
    @media (min-width: 480px) {
      p {
        font-size: 22px;
      }
    }
35. 35.📱 min-width: 800px applies when the screen is ___. (a) turned off (b) 800px or wider (c) 800px or narrower (d) exactly 100px
36. 36.What does text-align do? (a) makes the text bold (b) picks the font style (c) centres a heading (d) makes letters bigger
37. 37.🌈 Which colour is rgb(255, 0, 255)? (a) yellow (b) magenta (c) red (d) black
38. 38.✍️ Which property is set to 2px solid in this rule?
    p {
      background-color: yellow;
      color: red;
      border: 2px solid;
    } (a) width (b) font-style (c) 2px solid (d) border
39. 39.💪 How much empty space (px) is left after the last box?
    .row {
      display: flex;
      width: 130px;
      justify-content: flex-start;
    }
    Inside are 3 boxes, each 40px wide (no margins).
40. 40.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector

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