CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 546 · 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 .menu style? (a) <div class="big"> (b) <li class="note"> (c) <li class="menu"> (d) <li id="menu">
2. 2.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
3. 3.True or false: li is an element selector. (a) True (b) False
4. 4.True or false: body is an element selector. (a) True (b) False
5. 5.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h2 class="star"> (c) <p class="star"> (d) <h1>
6. 6.🎯 Which CSS selector matches this element?
   <span class="star" id="main">Hello</span> (a) .menu (b) span (c) #logo (d) .main
7. 7.🎯 Which element does the selector #hero style? (a) <span class="hero"> (b) <span id="top"> (c) <p class="note"> (d) <span id="hero">
8. 8.🎯 Which CSS selector matches this element?
   <p class="note" id="hero">Hello</p> (a) h1 (b) #note (c) p (d) .hero
9. 9.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
10. 10.🎯 Which element does the selector .red style? (a) <span class="red"> (b) <p class="star"> (c) <span id="red"> (d) <span class="box">
11. 11.🎯 Which element does the selector .note style? (a) <div id="note"> (b) <div class="big"> (c) <div class="note"> (d) <span class="red">
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) h1 (b) h2 (c) #intro (d) .red
13. 13.True or false: #logo is a class selector. (a) False (b) True
14. 14.True or false: #end is an id selector. (a) True (b) False
15. 15.True or false: #hero is an id selector. (a) True (b) False
16. 16.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) #red (b) p (c) #hero (d) h1
17. 17.True or false: .big is an element selector. (a) True (b) False
18. 18.True or false: p is an id selector. (a) True (b) False
19. 19.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <div id="star"> (c) <span class="note"> (d) <div class="star">
20. 20.🎯 Which element does the selector .menu style? (a) <span class="big"> (b) <div id="menu"> (c) <div class="menu"> (d) <div class="note">
21. 21.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
22. 22.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <h2 class="star"> (c) <li> (d) <span id="end">
23. 23.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) #end (b) div (c) .box (d) .end
25. 25.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) .logo (b) span (c) #menu (d) .menu
26. 26.🎯 Which element does the selector span style? (a) <span class="menu"> (b) <h1 class="menu"> (c) <p> (d) <h2 id="top">
27. 27.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) #red (b) .red (c) h1 (d) #intro
28. 28.🎯 Which element does the selector .red style? (a) <h1 class="red"> (b) <h1 class="box"> (c) <h1 id="red"> (d) <h2 class="star">
29. 29.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) #intro (b) span (c) .top (d) p
30. 30.True or false: img is an element selector. (a) False (b) True
31. 31.🎯 Which element does the selector #intro style? (a) <p class="intro"> (b) <h1 class="note"> (c) <p id="main"> (d) <p id="intro">
32. 32.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
33. 33.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h1 id="top"> (c) <h2 class="red"> (d) <h1 id="hero">
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) .menu (b) #top (c) #intro (d) #star
37. 37.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
38. 38.True or false: .big is a class selector. (a) True (b) False
39. 39.True or false: #main is an id selector. (a) False (b) True
40. 40.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &

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