CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 994 · 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 CSS selector matches this element?
   <h1 class="box" id="logo">Hello</h1> (a) #end (b) #box (c) .logo (d) #logo
2. 2.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <div id="hero"> (c) <h1 class="star"> (d) <h2>
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="star" id="top">Hello</h1> (a) .star (b) #star (c) .menu (d) #intro
4. 4.🎯 Which CSS selector matches this element?
   <h1 class="big" id="hero">Hello</h1> (a) .hero (b) #top (c) .big (d) h2
5. 5.🎯 Which CSS selector matches this element?
   <span class="note" id="top">Hello</span> (a) #note (b) span (c) .big (d) #intro
6. 6.🎯 Which element does the selector .note style? (a) <p class="big"> (b) <p id="note"> (c) <p class="note"> (d) <h1 class="red">
7. 7.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
8. 8.True or false: .star is a class selector. (a) True (b) False
9. 9.🎯 Which element does the selector .red style? (a) <div class="star"> (b) <li class="box"> (c) <li id="red"> (d) <li class="red">
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) .red (b) .big (c) span (d) #big
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) .top (b) p (c) .box (d) #intro
13. 13.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) #box (b) .star (c) span (d) div
14. 14.True or false: .card is a class selector. (a) True (b) False
15. 15.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) #box (b) span (c) .star (d) #top
16. 16.🎯 Which element does the selector h1 style? (a) <h1 class="red"> (b) <div id="logo"> (c) <h2> (d) <li class="red">
17. 17.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <p class="red"> (c) <h2 class="red"> (d) <h1>
18. 18.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #big (b) .big (c) .red (d) h1
19. 19.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) span (b) #intro (c) #top (d) .top
20. 20.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) .star (b) #end (c) .end (d) #hero
21. 21.True or false: #hero is an id selector. (a) True (b) False
22. 22.True or false: li is an element selector. (a) True (b) False
23. 23.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
24. 24.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
25. 25.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) #end (b) #logo (c) .box (d) p
26. 26.True or false: .note is an id selector. (a) False (b) True
27. 27.🎯 Which element does the selector div style? (a) <p class="note"> (b) <h1 id="end"> (c) <span> (d) <div class="note">
28. 28.True or false: #logo is an element selector. (a) False (b) True
29. 29.True or false: #main is an id selector. (a) True (b) False
30. 30.True or false: .menu is an id selector. (a) True (b) False
31. 31.🎯 Which element does the selector #intro style? (a) <li id="main"> (b) <li id="intro"> (c) <li class="intro"> (d) <div class="box">
32. 32.🎯 Which element does the selector #logo style? (a) <h1 id="logo"> (b) <h1 id="end"> (c) <h1 class="logo"> (d) <h2 class="star">
33. 33.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div class="note"> (c) <div class="big"> (d) <div id="note">
34. 34.True or false: body is a class selector. (a) False (b) True
35. 35.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
36. 36.True or false: body is an element selector. (a) True (b) False
37. 37.True or false: #end is an id selector. (a) True (b) False
38. 38.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
39. 39.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
40. 40.True or false: #logo is an id selector. (a) True (b) False

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