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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 99 · 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 element does the selector li style? (a) <span class="big"> (b) <li class="big"> (c) <div> (d) <p id="end">
  2. 2.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
  3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
  4. 4.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span>     (a) #logo (b) #menu (c) .main (d) span
  5. 5.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <h1 class="note"> (c) <p> (d) <span class="note">
  6. 6.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
  7. 7.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
  8. 8.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1>     (a) #logo (b) h1 (c) .main (d) h2
  9. 9.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
  10. 10.True or false: .note is a class selector. (a) False (b) True
  11. 11.True or false: #top is an id selector. (a) True (b) False
  12. 12.True or false: #main is an id selector. (a) False (b) True
  13. 13.🎯 Which element does the selector p style? (a) <h1> (b) <p class="big"> (c) <h2 class="big"> (d) <li id="hero">
  14. 14.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
  15. 15.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div>     (a) div (b) #hero (c) .big (d) .end
  16. 16.True or false: .card is a class selector. (a) True (b) False
  17. 17.🎯 Which element does the selector span style? (a) <span class="big"> (b) <h2 id="intro"> (c) <h1 class="big"> (d) <p>
  18. 18.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p>     (a) .top (b) #box (c) #top (d) #intro
  19. 19.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="star"> (d) <div class="logo">
  20. 20.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
  21. 21.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
  22. 22.True or false: .card is an id selector. (a) False (b) True
  23. 23.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1>     (a) .intro (b) #intro (c) .big (d) #note
  24. 24.True or false: .menu is an element selector. (a) True (b) False
  25. 25.🎯 Which CSS selector matches this element?
    <p class="note" id="hero">Hello</p>     (a) h1 (b) p (c) #top (d) .big
  26. 26.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
  27. 27.🎯 Which element does the selector .box style? (a) <h2 class="box"> (b) <li class="menu"> (c) <h2 id="box"> (d) <h2 class="star">
  28. 28.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
  29. 29.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1>     (a) #end (b) h1 (c) .logo (d) h2
  30. 30.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
  31. 31.True or false: #hero is an element selector. (a) True (b) False
  32. 32.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
  33. 33.True or false: body is an element selector. (a) True (b) False
  34. 34.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
  35. 35.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1>     (a) .box (b) #red (c) h2 (d) .red
  36. 36.True or false: h1 is an id selector. (a) False (b) True
  37. 37.True or false: p is an element selector. (a) False (b) True
  38. 38.🎯 Which element does the selector .note style? (a) <p class="big"> (b) <h1 class="red"> (c) <p class="note"> (d) <p id="note">
  39. 39.True or false: h1 is an element selector. (a) True (b) False
  40. 40.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2>     (a) .end (b) #hero (c) h2 (d) li

Answer key

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

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