CSS Worksheet: Selectors Class and Id

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

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