CSS Worksheet: Practice Test

HTML and CSS lesson 20: CSS test · Set 450 · 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: margin is space inside the border. (a) False (b) True
2. 2.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
4. 4.🖌️ Where does the text sit on its line?
   li {
     font-size: 28px;
     color: white;
     text-align: left;
     background-color: black;
   } (a) in the middle (b) on the left (c) on the right
5. 5.🎯 Which CSS selector matches this element?
   <p class="red" id="intro">Hello</p> (a) .box (b) h1 (c) .red (d) #red
6. 6.Which of these does CSS do? (a) counts down a timer (b) reacts to a button click (c) lays out the page (d) puts a picture on a page
7. 7.True or false: HTML makes headings and lists. (a) False (b) True
8. 8.⚖️ Which selector is the strongest? (a) a class selector (b) an id selector (c) an element selector
9. 9.📱 The screen is 1366px wide. What font-size (px) does the paragraph get?
   p {
     font-size: 12px;
   }
   @media (min-width: 480px) {
     p {
       font-size: 16px;
     }
   }
10. 10.✍️ How many declarations (property: value pairs) are in this rule?
    #top {
      background-color: yellow;
    }
11. 11.✍️ What value is given to font-weight in this rule?
    p {
      width: 300px;
      font-weight: bold;
    } (a) 2px solid (b) bold (c) font-weight (d) 300px
12. 12.💪 How much empty space (px) is before the first box?
    .row {
      display: flex;
      width: 180px;
      justify-content: flex-end;
    }
    Inside are 3 boxes, each 40px wide (no margins).
13. 13.🌈 Which colour is #ff0000? (a) bright green (b) black (c) red (d) white
14. 14.🔍 Which is the odd one out? (a) makes a form box (b) makes headings and lists (c) checks a quiz answer (d) puts a picture on a page
15. 15.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <h2 id="end"> (c) <h2 id="logo"> (d) <li class="big">
16. 16.💪 Which justify-content value packs boxes at the end? (a) flex-start (b) space-between (c) flex-end (d) center
17. 17.🌈 Which colour is rgb(255, 255, 255)? (a) magenta (b) red (c) cyan (d) white
18. 18.⚖️ What colour is the text of this element?
    <h1 class="menu" id="hero">Hi</h1>
    CSS:
    .menu { color: black; }
    .menu { color: blue; } (a) red (b) black (c) blue (d) purple
19. 19.📱 What does a media query check? (a) the page title (b) the battery level (c) the screen width (d) the time of day
20. 20.🖌️ Which CSS property centres a heading? (a) background-color (b) font-size (c) text-align (d) font-weight
21. 21.⚖️ What colour is the text of this element?
    <p class="big" id="intro">Hi</p>
    CSS:
    p { color: blue; }
    p { color: white; } (a) white (b) purple (c) orange (d) blue
22. 22.📱 The screen is 1100px wide. Does the rule inside @media apply?
    p {
      font-size: 12px;
    }
    @media (max-width: 600px) {
      p {
        font-size: 6px;
      }
    } (a) Yes (b) No
23. 23.🖌️ What colour are the letters?
    p {
      font-size: 28px;
      text-align: right;
      color: orange;
      background-color: white;
    } (a) orange (b) red (c) white
24. 24.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
25. 25.🌈 What is the biggest number one colour can have in rgb()? (a) 100 (b) 99 (c) 1000 (d) 255
26. 26.Which of these is the border? (a) a solid or dotted edge (b) space inside the border (c) space outside the border (d) the gap round content
27. 27.🖌️ What colour are the letters?
    h1 {
      font-size: 24px;
      background-color: yellow;
      color: blue;
      text-align: right;
    } (a) blue (b) yellow (c) red
28. 28.🌈 Which hex code is cyan? (a) #ffffff (b) #0000ff (c) #00ff00 (d) #00ffff
29. 29.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <p> (c) <h1 class="menu"> (d) <span class="menu">
30. 30.🧩 Which language makes a link? (a) JavaScript (b) CSS (c) HTML
31. 31.🎯 Which element does the selector li style? (a) <li class="menu"> (b) <div> (c) <p id="main"> (d) <span class="menu">
32. 32.✍️ How does a CSS comment start? (a) // (b) /* (c) # (d) <!--
33. 33.📦 How much space top to bottom (px) does this box take in all, margin included?
    .box {
      height: 50px;
      padding: 25px;
      border: 1px solid black;
      margin: 15px;
    }
34. 34.🖌️ How big is the text, in px?
    h2 {
      font-size: 40px;
      background-color: yellow;
      text-align: right;
      color: black;
    }
35. 35.🎨 Which tag holds CSS inside the head? (a) <script> (b) <body> (c) <style> (d) <css>
36. 36.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) div (b) #box (c) span (d) #logo
37. 37.⚖️ What colour is the text of this element?
    <h1 class="red" id="top">Hi</h1>
    CSS:
    .red { color: white; }
    .red { color: orange; } (a) white (b) orange (c) yellow (d) purple
38. 38.🌈 In #rrggbb, which colour do the first two digits give? (a) green (b) black (c) blue (d) red
39. 39.🖌️ What colour are the letters?
    h1 {
      color: white;
      background-color: orange;
      text-align: right;
      font-size: 24px;
    } (a) white (b) orange (c) yellow
40. 40.📦 How much space across (px) does this box take in all, margin included?
    .box {
      width: 100px;
      padding: 30px;
      border: 2px solid black;
      margin: 0px;
    }

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