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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 341 · 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.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div>     (a) div (b) #logo (c) span (d) .note
  2. 2.True or false: .note is an id selector. (a) False (b) True
  3. 3.True or false: .menu is an element selector. (a) False (b) True
  4. 4.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
  5. 5.True or false: img is an element selector. (a) True (b) False
  6. 6.🎯 Which element does the selector .note style? (a) <h2 class="big"> (b) <li class="red"> (c) <h2 id="note"> (d) <h2 class="note">
  7. 7.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
  8. 8.True or false: img is a class selector. (a) True (b) False
  9. 9.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
  10. 10.True or false: p is an id selector. (a) True (b) False
  11. 11.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <p class="box"> (c) <span id="intro"> (d) <span class="top">
  12. 12.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
  13. 13.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
  14. 14.True or false: li is an element selector. (a) False (b) True
  15. 15.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
  16. 16.🎯 Which element does the selector div style? (a) <span> (b) <div class="big"> (c) <h1 id="top"> (d) <p class="big">
  17. 17.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <p class="big"> (c) <h2 class="big"> (d) <h1>
  18. 18.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
  19. 19.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
  20. 20.True or false: h1 is an id selector. (a) True (b) False
  21. 21.🎯 Which element does the selector li style? (a) <span class="box"> (b) <li class="box"> (c) <div> (d) <p id="intro">
  22. 22.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p>     (a) h1 (b) .note (c) #menu (d) #main
  23. 23.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
  24. 24.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1>     (a) #red (b) #intro (c) h1 (d) .top
  25. 25.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <p class="box"> (c) <p id="box"> (d) <h1 class="menu">
  26. 26.🎯 Which element does the selector .big style? (a) <h1 class="box"> (b) <p class="red"> (c) <p class="big"> (d) <p id="big">
  27. 27.🎯 Which element does the selector .red style? (a) <p class="star"> (b) <span class="red"> (c) <span id="red"> (d) <span class="box">
  28. 28.True or false: .star is a class selector. (a) True (b) False
  29. 29.True or false: #hero is an element selector. (a) False (b) True
  30. 30.True or false: .big is an id selector. (a) True (b) False
  31. 31.🎯 Which element does the selector .note style? (a) <h1 class="note"> (b) <h1 class="big"> (c) <h2 class="red"> (d) <h1 id="note">
  32. 32.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="big"> (c) <h2 class="big"> (d) <span id="end">
  33. 33.True or false: #logo is a class selector. (a) True (b) False
  34. 34.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li>     (a) #intro (b) #red (c) div (d) li
  35. 35.🎯 Which element does the selector .menu style? (a) <span class="menu"> (b) <span id="menu"> (c) <p class="big"> (d) <span class="note">
  36. 36.True or false: #end is an element selector. (a) True (b) False
  37. 37.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p>     (a) p (b) .menu (c) .intro (d) h1
  38. 38.🎯 Can many elements share the same class? (a) No (b) Yes
  39. 39.True or false: #logo is an id selector. (a) False (b) True
  40. 40.True or false: .big is an element selector. (a) False (b) True

Answer key

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

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