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CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 82 · 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 .star style? (a) <li id="star"> (b) <li class="menu"> (c) <div class="note"> (d) <li class="star">
  2. 2.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
  3. 3.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
  4. 4.🎯 Which element does the selector .box style? (a) <span class="box"> (b) <p class="menu"> (c) <span class="star"> (d) <span id="box">
  5. 5.🎯 Which element does the selector #intro style? (a) <span class="red"> (b) <div id="intro"> (c) <div class="intro"> (d) <div id="main">
  6. 6.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
  7. 7.🎯 Which element does the selector .big style? (a) <li id="big"> (b) <div class="box"> (c) <li class="big"> (d) <li class="red">
  8. 8.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div>     (a) #star (b) .menu (c) #end (d) #hero
  9. 9.🎯 Which element does the selector div style? (a) <p class="note"> (b) <div class="note"> (c) <span> (d) <h1 id="intro">
  10. 10.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="note"> (c) <li class="red"> (d) <h2 class="big">
  11. 11.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
  12. 12.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li>     (a) .top (b) #intro (c) div (d) li
  13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span>     (a) p (b) #hero (c) .hero (d) .big
  14. 14.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
  15. 15.🎯 Which element does the selector #main style? (a) <li id="main"> (b) <li id="logo"> (c) <div class="menu"> (d) <li class="main">
  16. 16.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
  17. 17.🎯 Which element does the selector .star style? (a) <li class="note"> (b) <h2 class="star"> (c) <h2 id="star"> (d) <h2 class="menu">
  18. 18.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
  19. 19.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
  20. 20.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
  21. 21.True or false: img is a class selector. (a) True (b) False
  22. 22.True or false: .note is an element selector. (a) False (b) True
  23. 23.🎯 Which element does the selector p style? (a) <p class="note"> (b) <h2 class="note"> (c) <li id="logo"> (d) <h1>
  24. 24.🎯 Which element does the selector #logo style? (a) <li class="big"> (b) <h2 id="logo"> (c) <h2 class="logo"> (d) <h2 id="end">
  25. 25.🎯 Which sign starts an id selector? (a) # (b) & (c) @ (d) .
  26. 26.🎯 Can many elements share the same class? (a) Yes (b) No
  27. 27.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
  28. 28.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span>     (a) #star (b) #end (c) p (d) span
  29. 29.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <p class="menu"> (c) <span id="end"> (d) <span id="logo">
  30. 30.🎯 Which element does the selector li style? (a) <div> (b) <li class="red"> (c) <span class="red"> (d) <p id="intro">
  31. 31.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li>     (a) #end (b) div (c) .star (d) .end
  32. 32.🎯 Which element does the selector p style? (a) <p class="big"> (b) <li id="hero"> (c) <h2 class="big"> (d) <h1>
  33. 33.🎯 Which element does the selector .box style? (a) <p id="box"> (b) <h1 class="menu"> (c) <p class="star"> (d) <p class="box">
  34. 34.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2>     (a) .intro (b) .menu (c) .star (d) #star
  35. 35.True or false: h1 is a class selector. (a) True (b) False
  36. 36.🎯 Which element does the selector .note style? (a) <div class="note"> (b) <span class="red"> (c) <div class="big"> (d) <div id="note">
  37. 37.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
  38. 38.True or false: .menu is a class selector. (a) True (b) False
  39. 39.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div>     (a) #red (b) div (c) span (d) .top
  40. 40.🎯 Which CSS selector matches this element?
    <div class="star" id="hero">Hello</div>     (a) .hero (b) #top (c) span (d) #hero

Answer key

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

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