CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 882 · 40 questions

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.

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

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