CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 829 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which sign starts an id selector? (a) & (b) . (c) @ (d) #
3. 3.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) any number (d) 5
4. 4.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
5. 5.True or false: .menu is an element selector. (a) True (b) False
6. 6.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
7. 7.🎯 Which CSS selector matches this element?
   <span class="red" id="end">Hello</span> (a) p (b) .red (c) #hero (d) .box
8. 8.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
9. 9.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="big"> (c) <li id="main"> (d) <p class="big">
10. 10.True or false: #top is an id selector. (a) False (b) True
11. 11.🎯 Which element does the selector #intro style? (a) <h1 class="red"> (b) <p class="intro"> (c) <p id="main"> (d) <p id="intro">
12. 12.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="main"> (c) <li id="intro"> (d) <div class="menu">
14. 14.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
15. 15.🎯 Which element does the selector #logo style? (a) <p id="logo"> (b) <h1 class="note"> (c) <p class="logo"> (d) <p id="end">
16. 16.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
17. 17.🎯 Which element does the selector span style? (a) <h1 class="note"> (b) <h2 id="intro"> (c) <p> (d) <span class="note">
18. 18.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 Which element does the selector .red style? (a) <h1 class="red"> (b) <h1 class="box"> (c) <h1 id="red"> (d) <h2 class="star">
20. 20.🎯 Which element does the selector #end style? (a) <h2 class="star"> (b) <h1 class="end"> (c) <h1 id="hero"> (d) <h1 id="end">
21. 21.True or false: .card is a class selector. (a) True (b) False
22. 22.True or false: #hero is a class selector. (a) False (b) True
23. 23.True or false: li is an element selector. (a) True (b) False
24. 24.🎯 Which element does the selector .menu style? (a) <span class="big"> (b) <div id="menu"> (c) <div class="menu"> (d) <div class="note">
25. 25.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
26. 26.True or false: #main is an id selector. (a) True (b) False
27. 27.True or false: img is a class selector. (a) True (b) False
28. 28.True or false: .menu is a class selector. (a) False (b) True
29. 29.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
30. 30.True or false: .note is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="menu"> (c) <h2> (d) <h1 class="menu">
32. 32.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) h1 (b) #intro (c) .star (d) p
33. 33.True or false: .card is an element selector. (a) False (b) True
34. 34.🎯 Which element does the selector h1 style? (a) <h1 class="box"> (b) <h2> (c) <div id="main"> (d) <li class="box">
35. 35.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) .menu (b) #end (c) #star (d) #hero
36. 36.🎯 Which element does the selector #hero style? (a) <span class="menu"> (b) <div id="top"> (c) <div id="hero"> (d) <div class="hero">
37. 37.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 class="red"> (c) <h1 class="big"> (d) <h1 id="big">
38. 38.🎯 Which element does the selector li style? (a) <span class="box"> (b) <p id="top"> (c) <div> (d) <li class="box">
39. 39.🎯 Which element does the selector .note style? (a) <h1 id="note"> (b) <h1 class="note"> (c) <h2 class="red"> (d) <h1 class="big">
40. 40.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="menu"> (c) <h2 class="menu"> (d) <span id="top">

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