CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 162 · 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 element does the selector span style? (a) <h1 class="star"> (b) <p> (c) <span class="star"> (d) <h2 id="intro">
2. 2.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
3. 3.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div id="note"> (c) <div class="big"> (d) <div class="note">
4. 4.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
5. 5.True or false: .menu is an element selector. (a) True (b) False
6. 6.True or false: .big is an id selector. (a) True (b) False
7. 7.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) 2 (d) any number
8. 8.True or false: p is a class selector. (a) True (b) False
9. 9.True or false: body is a class selector. (a) True (b) False
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) #note (b) .top (c) .big (d) h1
12. 12.🎯 Which element does the selector .note style? (a) <h2 class="big"> (b) <h2 id="note"> (c) <li class="red"> (d) <h2 class="note">
13. 13.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) span (b) .top (c) #note (d) div
15. 15.🎯 Which element does the selector .star style? (a) <li class="menu"> (b) <li id="star"> (c) <div class="note"> (d) <li class="star">
16. 16.True or false: .note is an element selector. (a) True (b) False
17. 17.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <div class="big"> (c) <li id="top"> (d) <li id="intro">
18. 18.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <h1> (c) <p class="menu"> (d) <h2 class="menu">
19. 19.🎯 Which element does the selector span style? (a) <h2 id="intro"> (b) <p> (c) <h1 class="note"> (d) <span class="note">
20. 20.🎯 Which CSS selector matches this element?
    <p class="menu" id="end">Hello</p> (a) h1 (b) #menu (c) p (d) .note
21. 21.🎯 Which element does the selector h1 style? (a) <div id="main"> (b) <h1 class="star"> (c) <h2> (d) <li class="star">
22. 22.True or false: li is an element selector. (a) False (b) True
23. 23.🎯 Which element does the selector #end style? (a) <li class="menu"> (b) <h2 class="end"> (c) <h2 id="hero"> (d) <h2 id="end">
24. 24.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) #intro (b) li (c) .big (d) .top
25. 25.🎯 Which element does the selector #logo style? (a) <h1 class="red"> (b) <p class="logo"> (c) <p id="end"> (d) <p id="logo">
26. 26.True or false: .note is a class selector. (a) True (b) False
27. 27.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
28. 28.True or false: h1 is an element selector. (a) False (b) True
29. 29.🎯 Which element does the selector h1 style? (a) <h1 class="note"> (b) <h2> (c) <li class="note"> (d) <div id="hero">
30. 30.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
31. 31.🎯 Which element does the selector #intro style? (a) <div class="intro"> (b) <div id="intro"> (c) <div id="main"> (d) <span class="big">
32. 32.True or false: h1 is an id selector. (a) True (b) False
33. 33.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
34. 34.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <div class="menu"> (c) <span> (d) <p class="menu">
36. 36.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <h2 class="star"> (c) <span id="top"> (d) <li>
37. 37.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h1> (c) <p class="note"> (d) <h2 class="note">
38. 38.True or false: #top is an id selector. (a) False (b) True
39. 39.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
40. 40.True or false: p is an element selector. (a) True (b) False

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