CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 418 · 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.True or false: .big is a class selector. (a) False (b) True
2. 2.True or false: img is an element selector. (a) False (b) True
3. 3.🎯 Which element does the selector #end style? (a) <h2 id="end"> (b) <h2 id="hero"> (c) <li class="note"> (d) <h2 class="end">
4. 4.🎯 Which CSS selector matches this element?
   <h2 class="note" id="top">Hello</h2> (a) h2 (b) .big (c) #intro (d) .top
5. 5.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <li id="end"> (c) <div class="big"> (d) <li id="hero">
6. 6.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
7. 7.True or false: p is a class selector. (a) False (b) True
8. 8.🎯 Which element does the selector #logo style? (a) <li id="end"> (b) <li class="logo"> (c) <div class="note"> (d) <li id="logo">
9. 9.True or false: .star is a class selector. (a) True (b) False
10. 10.True or false: .big is an element selector. (a) False (b) True
11. 11.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
12. 12.True or false: #hero is a class selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <li class="red" id="hero">Hello</li> (a) li (b) #red (c) .box (d) .hero
14. 14.🎯 Which element does the selector .red style? (a) <li class="box"> (b) <li id="red"> (c) <li class="red"> (d) <div class="star">
15. 15.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
16. 16.True or false: #top is an id selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) #box (b) #hero (c) h2 (d) #top
18. 18.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
19. 19.🎯 Which element does the selector .red style? (a) <h2 class="star"> (b) <h1 class="box"> (c) <h1 class="red"> (d) <h1 id="red">
20. 20.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) #main (b) #box (c) .main (d) h1
21. 21.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
22. 22.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <h2 id="intro"> (c) <p> (d) <span class="big">
23. 23.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <li id="intro"> (c) <p class="menu"> (d) <h1>
24. 24.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 Which element does the selector #hero style? (a) <div class="hero"> (b) <span class="note"> (c) <div id="top"> (d) <div id="hero">
26. 26.True or false: p is an element selector. (a) False (b) True
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) .note (b) #intro (c) #menu (d) .menu
28. 28.True or false: #top is a class selector. (a) True (b) False
29. 29.🎯 Which element does the selector li style? (a) <div> (b) <p id="end"> (c) <span class="note"> (d) <li class="note">
30. 30.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) h2 (b) .box (c) #end (d) #red
33. 33.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span id="note"> (c) <p class="red"> (d) <span class="note">
34. 34.True or false: .card is an element selector. (a) True (b) False
35. 35.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
36. 36.🎯 Which element does the selector #intro style? (a) <span class="star"> (b) <div class="intro"> (c) <div id="main"> (d) <div id="intro">
37. 37.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) #intro (b) #big (c) span (d) .red
38. 38.🎯 Which element does the selector h1 style? (a) <div id="hero"> (b) <h1 class="star"> (c) <li class="star"> (d) <h2>
39. 39.🎯 Which element does the selector p style? (a) <li id="main"> (b) <p class="red"> (c) <h1> (d) <h2 class="red">
40. 40.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector

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