CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 435 · 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: .card is an element selector. (a) False (b) True
2. 2.🎯 Which CSS selector matches this element?
   <li class="big" id="logo">Hello</li> (a) #end (b) div (c) .big (d) .logo
3. 3.True or false: .big is a class selector. (a) False (b) True
4. 4.True or false: .star is a class selector. (a) False (b) True
5. 5.True or false: body is an element selector. (a) False (b) True
6. 6.🎯 Can many elements share the same class? (a) Yes (b) No
7. 7.True or false: .menu is an element selector. (a) False (b) True
8. 8.🎯 Which CSS selector matches this element?
   <div class="box" id="top">Hello</div> (a) .top (b) #box (c) div (d) .star
9. 9.🎯 Which CSS selector matches this element?
   <h1 class="big" id="logo">Hello</h1> (a) #end (b) .logo (c) h1 (d) h2
10. 10.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &
11. 11.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <h2 class="menu"> (c) <li> (d) <span id="hero">
12. 12.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) .star (b) #logo (c) div (d) .logo
13. 13.True or false: img is a class selector. (a) False (b) True
14. 14.True or false: img is an element selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <div class="big" id="top">Hello</div> (a) #top (b) span (c) #intro (d) .red
16. 16.🎯 Which element does the selector .menu style? (a) <p class="menu"> (b) <h1 class="big"> (c) <p id="menu"> (d) <p class="note">
17. 17.True or false: #hero is a class selector. (a) True (b) False
18. 18.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
19. 19.True or false: #main is an id selector. (a) False (b) True
20. 20.🎯 Which element does the selector .big style? (a) <h1 class="box"> (b) <p id="big"> (c) <p class="red"> (d) <p class="big">
21. 21.True or false: .note is a class selector. (a) False (b) True
22. 22.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
23. 23.🎯 Which element does the selector .menu style? (a) <h2 class="menu"> (b) <h2 id="menu"> (c) <li class="big"> (d) <h2 class="note">
24. 24.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <p class="star"> (d) <h2 class="star">
25. 25.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <div class="red"> (c) <li id="hero"> (d) <li id="end">
26. 26.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
29. 29.True or false: .card is a class selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) .note (b) .big (c) #intro (d) h2
31. 31.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) .intro (b) .note (c) span (d) #menu
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1> (a) #intro (b) .box (c) .top (d) #top
33. 33.🎯 Which element does the selector #hero style? (a) <li id="hero"> (b) <div class="menu"> (c) <li id="top"> (d) <li class="hero">
34. 34.🎯 Which element does the selector .box style? (a) <p id="box"> (b) <p class="star"> (c) <p class="box"> (d) <h1 class="menu">
35. 35.True or false: #top is an element selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) .red (b) h1 (c) p (d) #big
37. 37.🎯 Which element does the selector .box style? (a) <h1 class="box"> (b) <h1 id="box"> (c) <h2 class="menu"> (d) <h1 class="star">
38. 38.True or false: p is an element selector. (a) True (b) False
39. 39.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
40. 40.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) #hero (b) .note (c) .end (d) .menu

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