CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 272 · 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: #end is an element selector. (a) False (b) True
2. 2.🎯 Which element does the selector p style? (a) <p class="star"> (b) <h2 class="star"> (c) <li id="main"> (d) <h1>
3. 3.True or false: p is an id selector. (a) False (b) True
4. 4.🎯 Can many elements share the same class? (a) Yes (b) No
5. 5.🎯 Which CSS selector matches this element?
   <div class="note" id="end">Hello</div> (a) .end (b) #note (c) #end (d) span
6. 6.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
7. 7.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
8. 8.🎯 Which CSS selector matches this element?
   <li class="box" id="end">Hello</li> (a) li (b) #box (c) #hero (d) div
9. 9.🎯 Which element does the selector p style? (a) <li id="main"> (b) <h1> (c) <h2 class="big"> (d) <p class="big">
10. 10.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
11. 11.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="note"> (c) <p class="big"> (d) <span class="menu">
12. 12.True or false: .menu is a class selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) #main (b) span (c) #intro (d) #red
14. 14.🎯 Which element does the selector #end style? (a) <h1 id="end"> (b) <h1 id="hero"> (c) <h1 class="end"> (d) <h2 class="box">
15. 15.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) .main (b) .menu (c) #main (d) #star
16. 16.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
17. 17.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <li class="note"> (c) <div> (d) <span class="note">
18. 18.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
19. 19.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
20. 20.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) .hero (b) span (c) #top (d) p
21. 21.True or false: .big is an id selector. (a) False (b) True
22. 22.🎯 Which element does the selector .red style? (a) <div class="box"> (b) <div class="red"> (c) <div id="red"> (d) <span class="star">
23. 23.🎯 Which element does the selector div style? (a) <h1 id="hero"> (b) <span> (c) <p class="menu"> (d) <div class="menu">
24. 24.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="note"> (c) <h2 class="note"> (d) <span id="main">
25. 25.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
26. 26.🎯 Which CSS selector matches this element?
    <p class="red" id="end">Hello</p> (a) #hero (b) .end (c) #red (d) p
27. 27.True or false: .star is an element selector. (a) False (b) True
28. 28.True or false: .big is a class selector. (a) True (b) False
29. 29.True or false: #hero is an id selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <div class="menu" id="end">Hello</div> (a) #menu (b) #end (c) .note (d) span
31. 31.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h2 class="menu"> (c) <h1> (d) <li id="intro">
32. 32.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) .star (b) #intro (c) .menu (d) #star
33. 33.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p class="note"> (c) <p class="big"> (d) <p id="note">
34. 34.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) h1 (b) #big (c) #hero (d) p
35. 35.True or false: #end is a class selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .big (b) .top (c) p (d) #intro
37. 37.🎯 Which element does the selector div style? (a) <p class="note"> (b) <h1 id="top"> (c) <span> (d) <div class="note">
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="star" id="hero">Hello</h1> (a) #hero (b) .menu (c) h2 (d) .hero
39. 39.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <span id="end"> (c) <p class="star"> (d) <span id="logo">
40. 40.🎯 Which element does the selector #main style? (a) <h1 class="star"> (b) <p id="main"> (c) <p id="logo"> (d) <p class="main">

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