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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 766 · 40 questions
TalentJR

Code tip (Dot for class, hash for id): p matches every <p>; .note matches class="note"; #top matches id="top". A dot means class, a hash means id — mixing them up matches nothing. Many elements can share a class; an id belongs to only one element.

NameDateTime takenScore ___ / 40
  1. 1.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
  2. 2.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span>     (a) p (b) .intro (c) #main (d) #intro
  3. 3.🎯 Can many elements share the same class? (a) Yes (b) No
  4. 4.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
  5. 5.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span>     (a) #main (b) p (c) #intro (d) #star
  6. 6.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
  7. 7.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1>     (a) .hero (b) h2 (c) h1 (d) #top
  8. 8.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p>     (a) .star (b) .menu (c) #logo (d) #star
  9. 9.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
  10. 10.🎯 Which CSS selector matches this element?
    <li class="note" id="end">Hello</li>     (a) li (b) .big (c) #hero (d) #note
  11. 11.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span class="red"> (c) <span id="red"> (d) <p class="star">
  12. 12.True or false: p is a class selector. (a) True (b) False
  13. 13.True or false: body is an element selector. (a) True (b) False
  14. 14.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <li> (c) <h2 class="note"> (d) <span id="top">
  15. 15.True or false: body is a class selector. (a) True (b) False
  16. 16.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p>     (a) p (b) #intro (c) #menu (d) .note
  17. 17.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
  18. 18.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span>     (a) #box (b) #top (c) .box (d) p
  19. 19.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <p class="box"> (c) <span> (d) <div class="box">
  20. 20.True or false: #hero is a class selector. (a) False (b) True
  21. 21.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="red"> (c) <div id="end"> (d) <h1 class="red">
  22. 22.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
  23. 23.True or false: img is an id selector. (a) False (b) True
  24. 24.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
  25. 25.True or false: #end is an id selector. (a) True (b) False
  26. 26.True or false: .card is an element selector. (a) False (b) True
  27. 27.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <h2 class="note"> (c) <li class="big"> (d) <h2 class="menu">
  28. 28.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p>     (a) .top (b) #red (c) h1 (d) p
  29. 29.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2>     (a) li (b) h2 (c) #star (d) .menu
  30. 30.🎯 Which element does the selector #end style? (a) <span id="end"> (b) <span id="hero"> (c) <span class="end"> (d) <p class="note">
  31. 31.True or false: h1 is a class selector. (a) True (b) False
  32. 32.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span>     (a) .note (b) span (c) .main (d) #logo
  33. 33.🎯 Which element does the selector li style? (a) <li class="red"> (b) <p id="intro"> (c) <span class="red"> (d) <div>
  34. 34.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
  35. 35.True or false: li is an element selector. (a) True (b) False
  36. 36.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2>     (a) .menu (b) .main (c) #main (d) #logo
  37. 37.🎯 Which element does the selector h2 style? (a) <div class="red"> (b) <h2 class="red"> (c) <span id="hero"> (d) <li>
  38. 38.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
  39. 39.True or false: p is an id selector. (a) True (b) False
  40. 40.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="menu"> (c) <div id="top"> (d) <h1 class="menu">

Answer key

  1. a class selector
  2. #intro
  3. Yes
  4. a class selector
  5. #intro
  6. #
  7. h1
  8. .star
  9. an id selector
  10. li
  11. <span class="red">
  12. False
  13. True
  14. <h2 class="note">
  15. False
  16. p
  17. an element selector
  18. .box
  19. <div class="box">
  20. False
  21. <h1 class="red">
  22. .
  23. False
  24. an element selector
  25. True
  26. False
  27. <h2 class="menu">
  28. p
  29. h2
  30. <span id="end">
  31. False
  32. span
  33. <li class="red">
  34. 1
  35. True
  36. #main
  37. <h2 class="red">
  38. an element selector
  39. False
  40. <h1 class="menu">

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