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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 464 · 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.True or false: .star is an element selector. (a) True (b) False
  2. 2.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span>     (a) #intro (b) p (c) .menu (d) span
  3. 3.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
  4. 4.True or false: #top is an id selector. (a) False (b) True
  5. 5.🎯 Which element does the selector h1 style? (a) <h1 class="red"> (b) <li class="red"> (c) <div id="logo"> (d) <h2>
  6. 6.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
  7. 7.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
  8. 8.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1>     (a) .star (b) .main (c) #box (d) .box
  9. 9.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
  10. 10.True or false: .note is an element selector. (a) True (b) False
  11. 11.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
  12. 12.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p>     (a) #note (b) h1 (c) p (d) .logo
  13. 13.🎯 Which element does the selector .star style? (a) <div class="note"> (b) <li id="star"> (c) <li class="menu"> (d) <li class="star">
  14. 14.🎯 Which CSS selector matches this element?
    <div class="star" id="top">Hello</div>     (a) span (b) #star (c) .star (d) #intro
  15. 15.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="top"> (c) <h1> (d) <p class="star">
  16. 16.🎯 Which element does the selector .menu style? (a) <p id="menu"> (b) <h1 class="big"> (c) <p class="menu"> (d) <p class="note">
  17. 17.🎯 Which element does the selector #top style? (a) <p id="top"> (b) <p class="top"> (c) <h1 class="big"> (d) <p id="intro">
  18. 18.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
  19. 19.True or false: .star is a class selector. (a) False (b) True
  20. 20.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <div class="note"> (c) <li id="top"> (d) <li id="intro">
  21. 21.True or false: .card is an id selector. (a) True (b) False
  22. 22.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p>     (a) h1 (b) .note (c) .hero (d) #hero
  23. 23.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #
  24. 24.🎯 Which element does the selector p style? (a) <h1> (b) <li id="top"> (c) <h2 class="big"> (d) <p class="big">
  25. 25.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="menu"> (c) <p class="big"> (d) <span class="note">
  26. 26.True or false: #end is a class selector. (a) False (b) True
  27. 27.True or false: .menu is an element selector. (a) True (b) False
  28. 28.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
  29. 29.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
  30. 30.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1>     (a) h2 (b) .box (c) h1 (d) #main
  31. 31.True or false: .card is an element selector. (a) True (b) False
  32. 32.True or false: #end is an id selector. (a) False (b) True
  33. 33.True or false: .note is a class selector. (a) False (b) True
  34. 34.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div>     (a) .hero (b) #hero (c) span (d) #menu
  35. 35.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <span class="red"> (c) <h1 class="red"> (d) <p>
  36. 36.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <span> (c) <p class="menu"> (d) <h1 id="intro">
  37. 37.True or false: p is a class selector. (a) False (b) True
  38. 38.True or false: li is an element selector. (a) True (b) False
  39. 39.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="red"> (c) <li id="intro"> (d) <p class="red">
  40. 40.True or false: #logo is an element selector. (a) True (b) False

Answer key

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

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