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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 842 · 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="logo">Hello</div>     (a) #end (b) .logo (c) .menu (d) #menu
  2. 2.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
  3. 3.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
  4. 4.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
  5. 5.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li>     (a) #intro (b) .red (c) div (d) #red
  6. 6.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
  7. 7.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div>     (a) #main (b) span (c) .menu (d) .star
  8. 8.🎯 Which element does the selector #hero style? (a) <li class="star"> (b) <h2 class="hero"> (c) <h2 id="top"> (d) <h2 id="hero">
  9. 9.🎯 Which element does the selector li style? (a) <span class="box"> (b) <p id="top"> (c) <li class="box"> (d) <div>
  10. 10.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1>     (a) #big (b) h1 (c) .red (d) #logo
  11. 11.True or false: p is an element selector. (a) True (b) False
  12. 12.True or false: .card is a class selector. (a) True (b) False
  13. 13.True or false: #logo is an id selector. (a) True (b) False
  14. 14.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span>     (a) #note (b) .main (c) p (d) #main
  15. 15.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
  16. 16.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
  17. 17.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span class="top"> (c) <p class="star"> (d) <span id="intro">
  18. 18.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
  19. 19.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="big"> (c) <h1> (d) <p class="big">
  20. 20.🎯 Can many elements share the same class? (a) No (b) Yes
  21. 21.🎯 Which element does the selector .big style? (a) <h2 class="big"> (b) <h2 id="big"> (c) <h2 class="red"> (d) <li class="box">
  22. 22.True or false: li is an element selector. (a) False (b) True
  23. 23.🎯 Which element does the selector .red style? (a) <span class="red"> (b) <span class="box"> (c) <p class="star"> (d) <span id="red">
  24. 24.🎯 Which element does the selector #hero style? (a) <div class="hero"> (b) <div id="top"> (c) <div id="hero"> (d) <span class="menu">
  25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2>     (a) #hero (b) .menu (c) .star (d) li
  26. 26.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div>     (a) #box (b) .logo (c) span (d) .box
  27. 27.True or false: li is a class selector. (a) True (b) False
  28. 28.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
  29. 29.🎯 Which element does the selector #intro style? (a) <li class="big"> (b) <h2 id="intro"> (c) <h2 id="main"> (d) <h2 class="intro">
  30. 30.🎯 Which element does the selector p style? (a) <li id="end"> (b) <h2 class="box"> (c) <p class="box"> (d) <h1>
  31. 31.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span>     (a) .logo (b) span (c) #menu (d) .note
  32. 32.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li>     (a) #star (b) .intro (c) .menu (d) li
  33. 33.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
  34. 34.True or false: h1 is a class selector. (a) False (b) True
  35. 35.True or false: .note is a class selector. (a) True (b) False
  36. 36.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="menu"> (c) <p class="menu"> (d) <h1>
  37. 37.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p>     (a) .top (b) .red (c) #intro (d) #top
  38. 38.True or false: #main is an element selector. (a) True (b) False
  39. 39.True or false: p is a class selector. (a) False (b) True
  40. 40.True or false: img is a class selector. (a) True (b) False

Answer key

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

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