CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 19 · 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.💪 How wide (px) is each gap between two boxes?
   .row {
     display: flex;
     width: 320px;
     justify-content: space-between;
   }
   Inside are 3 boxes, each 100px wide (no margins).
2. 2.🌈 Which colour is rgb(255, 0, 0)? (a) white (b) red (c) black (d) blue
3. 3.💪 How much empty space (px) is before the first box?
   .row {
     display: flex;
     width: 260px;
     justify-content: center;
   }
   Inside are 2 boxes, each 80px wide (no margins).
4. 4.Which of these does JavaScript do? (a) makes a form box (b) sets colours and fonts (c) shows a pop-up message (d) gives the page structure
5. 5.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <p class="big"> (c) <span> (d) <div class="big">
6. 6.🌈 Which colour is #00ff00? (a) blue (b) white (c) bright green (d) black
7. 7.⚖️ Two rules with the same selector set a colour. Which one wins? (a) the later one (b) the shorter one (c) neither (d) the first one
8. 8.True or false: JavaScript makes a form box. (a) False (b) True
9. 9.⚖️ What colour is the text of this element?
   <p class="menu" id="intro">Hi</p>
   CSS:
   p { color: orange; }
   #intro { color: white; } (a) orange (b) green (c) red (d) white
10. 10.🎨 Which tag connects an outside CSS file? (a) <img> (b) <link> (c) <css> (d) <a>
11. 11.🌈 Which colour is #00ffff? (a) white (b) red (c) cyan (d) blue
12. 12.💪 Which flexbox property spaces boxes along a row? (a) gap (b) display: flex (c) justify-content (d) align-items
13. 13.📱 The screen is 1366px wide. Does the rule inside @media apply?
    p {
      font-size: 16px;
    }
    @media (max-width: 480px) {
      p {
        font-size: 14px;
      }
    } (a) Yes (b) No
14. 14.🖌️ What colour is behind the letters?
    h2 {
      font-size: 40px;
      background-color: yellow;
      text-align: left;
      color: green;
    } (a) white (b) green (c) yellow
15. 15.⚖️ What colour is the text of this element?
    <h1 class="star" id="main">Hi</h1>
    CSS:
    #main { color: yellow; }
    #main { color: purple; } (a) yellow (b) blue (c) white (d) purple
16. 16.True or false: .big is an id selector. (a) True (b) False
17. 17.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
18. 18.✍️ How many declarations (property: value pairs) are in this rule?
    #top {
      font-size: 20px;
    }
19. 19.⚖️ Which selector is the weakest? (a) an element selector (b) an id selector (c) a class selector
20. 20.📱 The screen is 414px wide. What font-size (px) does the paragraph get?
    p {
      font-size: 12px;
    }
    @media (min-width: 480px) {
      p {
        font-size: 16px;
      }
    }
21. 21.✍️ What value is given to text-align in this rule?
    li {
      text-align: center;
      color: red;
    } (a) text-align (b) center (c) yellow (d) 10px
22. 22.Which of these is margin? (a) a solid or dotted edge (b) space inside the border (c) the gap to other boxes (d) the gap round content
23. 23.🌈 Which colour of light is strongest in rgb(115, 86, 233)? (a) green (b) blue (c) red
24. 24.🌈 What is the biggest number one colour can have in rgb()? (a) 255 (b) 99 (c) 1000 (d) 100
25. 25.🧩 Which language adds space around boxes? (a) HTML (b) JavaScript (c) CSS
26. 26.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <div id="top"> (d) <h1 class="note">
27. 27.🖌️ How big is the text, in px?
    li {
      text-align: center;
      background-color: blue;
      color: green;
      font-size: 12px;
    }
28. 28.🖌️ How big is the text, in px?
    li {
      background-color: purple;
      font-size: 36px;
      text-align: right;
      color: black;
    }
29. 29.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
30. 30.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) #main (b) .star (c) p (d) .intro
31. 31.🖌️ What colour are the letters?
    h1 {
      text-align: right;
      color: black;
      font-size: 28px;
      background-color: purple;
    } (a) black (b) yellow (c) purple
32. 32.📱 The screen is 1366px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 8px;
      }
    } (a) No (b) Yes
33. 33.🖌️ What colour are the letters?
    h2 {
      font-size: 36px;
      color: green;
      text-align: left;
      background-color: purple;
    } (a) red (b) purple (c) green
34. 34.⚖️ Which selector is the strongest? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎨 One CSS file can style how many pages? (a) only one image (b) no pages (c) many pages (d) only one word
36. 36.🖌️ How big is the text, in px?
    h2 {
      background-color: purple;
      text-align: right;
      font-size: 16px;
      color: blue;
    }
37. 37.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 140px;
      padding: 10px;
      border: 4px solid black;
      margin: 10px;
    }
38. 38.✍️ What value is given to border in this rule?
    li {
      font-style: italic;
      margin: 10px;
      border: 2px solid;
    } (a) 300px (b) border (c) 2px solid (d) italic
39. 39.💪 Which flexbox property sets space between boxes? (a) align-items (b) display: flex (c) flex-direction (d) gap
40. 40.✍️ What value is given to font-size in this rule?
    #top {
      margin: 10px;
      padding: 8px;
      font-size: 20px;
    } (a) yellow (b) center (c) font-size (d) 20px

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