CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 314 · 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: .note is a class selector. (a) True (b) False
2. 2.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <p class="top"> (c) <h1 class="star"> (d) <p id="top">
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="big" id="main">Hello</h2> (a) li (b) #logo (c) #big (d) h2
4. 4.True or false: #hero is an element selector. (a) False (b) True
5. 5.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="big"> (c) <li class="note"> (d) <div class="red">
6. 6.🎯 Which sign starts a class selector? (a) & (b) @ (c) # (d) .
7. 7.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
8. 8.True or false: .card is an element selector. (a) False (b) True
9. 9.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
10. 10.True or false: body is an element selector. (a) False (b) True
11. 11.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
12. 12.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) #big (b) #top (c) div (d) .hero
14. 14.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
16. 16.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
17. 17.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
18. 18.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="box"> (c) <span id="logo"> (d) <h2 class="box">
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .star (b) #star (c) #top (d) li
20. 20.🎯 Which element does the selector li style? (a) <p id="end"> (b) <span class="note"> (c) <div> (d) <li class="note">
21. 21.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) #top (b) #box (c) .top (d) li
23. 23.🎯 Can many elements share the same class? (a) No (b) Yes
24. 24.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) #top (b) .hero (c) .box (d) p
25. 25.True or false: .note is an element selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) span (b) p (c) .main (d) .red
27. 27.🎯 Which element does the selector h2 style? (a) <li> (b) <h2 class="note"> (c) <div class="note"> (d) <span id="top">
28. 28.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h1> (c) <p class="note"> (d) <h2 class="note">
29. 29.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p id="note"> (c) <p class="big"> (d) <p class="note">
30. 30.🎯 Which element does the selector .menu style? (a) <li id="menu"> (b) <div class="big"> (c) <li class="menu"> (d) <li class="note">
31. 31.True or false: .star is a class selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) .red (b) #big (c) #end (d) .end
33. 33.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 Which element does the selector p style? (a) <p class="box"> (b) <h2 class="box"> (c) <li id="hero"> (d) <h1>
35. 35.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <li> (c) <h2 class="star"> (d) <span id="logo">
36. 36.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) div (b) .main (c) #logo (d) .menu
38. 38.True or false: .big is an id selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) h2 (b) #top (c) #menu (d) .hero
40. 40.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 id="note"> (c) <h1 class="note"> (d) <h2 class="red">

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