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CSS Worksheet: Selectors Class and Id

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

Answer key

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

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