CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 922 · 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.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 Which element does the selector #hero style? (a) <span class="hero"> (b) <span id="top"> (c) <p class="big"> (d) <span id="hero">
3. 3.True or false: .star is an element selector. (a) False (b) True
4. 4.🎯 Which element does the selector div style? (a) <div class="note"> (b) <h1 id="main"> (c) <p class="note"> (d) <span>
5. 5.🎯 Which CSS selector matches this element?
   <div class="menu" id="hero">Hello</div> (a) #top (b) .note (c) .menu (d) .hero
6. 6.True or false: p is a class selector. (a) False (b) True
7. 7.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <li class="red"> (c) <h2 class="big"> (d) <h2 class="note">
8. 8.True or false: .note is a class selector. (a) False (b) True
9. 9.True or false: #hero is an id selector. (a) False (b) True
10. 10.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) any number (d) 5
11. 11.🎯 Which element does the selector li style? (a) <li class="note"> (b) <span class="note"> (c) <div> (d) <p id="intro">
12. 12.🎯 Which element does the selector #end style? (a) <div class="end"> (b) <div id="end"> (c) <span class="menu"> (d) <div id="hero">
13. 13.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) .big (b) .note (c) #note (d) .intro
14. 14.🎯 Which element does the selector #end style? (a) <div class="menu"> (b) <li id="hero"> (c) <li id="end"> (d) <li class="end">
15. 15.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
16. 16.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &
17. 17.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
18. 18.True or false: .card is an id selector. (a) False (b) True
19. 19.🎯 Which element does the selector #logo style? (a) <li id="end"> (b) <li class="logo"> (c) <li id="logo"> (d) <div class="note">
20. 20.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .red (b) li (c) #big (d) .logo
21. 21.🎯 Which element does the selector span style? (a) <span class="menu"> (b) <p> (c) <h1 class="menu"> (d) <h2 id="top">
22. 22.True or false: .menu is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) #menu (b) span (c) .hero (d) div
24. 24.True or false: #main is an element selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) .logo (b) .note (c) #note (d) h1
26. 26.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <div class="red"> (c) <span> (d) <p class="red">
27. 27.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
28. 28.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div id="box"> (c) <div class="star"> (d) <div class="box">
29. 29.True or false: #main is a class selector. (a) True (b) False
30. 30.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) .top (b) #intro (c) h2 (d) li
33. 33.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) .big (b) #end (c) #note (d) h2
35. 35.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="menu"> (c) <p class="menu"> (d) <h1>
36. 36.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <p class="big" id="logo">Hello</p> (a) h1 (b) #end (c) #logo (d) .red
38. 38.🎯 Can many elements share the same class? (a) Yes (b) No
39. 39.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) div (b) .note (c) .intro (d) #note

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