CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 685 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.True or false: .big is an id selector. (a) False (b) True
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="big" id="logo">Hello</h1> (a) #logo (b) #big (c) .red (d) #end
4. 4.🎯 Which element does the selector #top style? (a) <h2 class="big"> (b) <h1 id="intro"> (c) <h1 class="top"> (d) <h1 id="top">
5. 5.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which element does the selector p style? (a) <h1> (b) <p class="box"> (c) <li id="hero"> (d) <h2 class="box">
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
8. 8.🎯 Which CSS selector matches this element?
   <span class="star" id="main">Hello</span> (a) #star (b) p (c) span (d) #logo
9. 9.True or false: .note is an element selector. (a) False (b) True
10. 10.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
11. 11.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 Which element does the selector #top style? (a) <li id="top"> (b) <div class="menu"> (c) <li id="intro"> (d) <li class="top">
13. 13.True or false: .big is a class selector. (a) True (b) False
14. 14.🎯 Which element does the selector li style? (a) <li class="box"> (b) <p id="intro"> (c) <span class="box"> (d) <div>
15. 15.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) #hero (b) #end (c) .big (d) #note
17. 17.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) h1 (b) p (c) .box (d) #red
18. 18.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) .red (b) #big (c) h1 (d) #end
19. 19.True or false: .star is an id selector. (a) True (b) False
20. 20.True or false: h1 is an element selector. (a) True (b) False
21. 21.🎯 Which element does the selector .menu style? (a) <div class="big"> (b) <li class="note"> (c) <li class="menu"> (d) <li id="menu">
22. 22.🎯 Which element does the selector .red style? (a) <h2 class="red"> (b) <h2 class="box"> (c) <h2 id="red"> (d) <li class="star">
23. 23.🎯 Which element does the selector p style? (a) <li id="main"> (b) <h1> (c) <p class="big"> (d) <h2 class="big">
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) h2 (b) .menu (c) .star (d) #intro
25. 25.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
26. 26.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) .main (b) #logo (c) span (d) #main
27. 27.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <span id="intro"> (c) <h2 class="box"> (d) <li>
29. 29.True or false: .star is an element selector. (a) False (b) True
30. 30.True or false: .menu is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector p style? (a) <p class="star"> (b) <h2 class="star"> (c) <h1> (d) <li id="logo">
32. 32.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .menu (b) h2 (c) li (d) .hero
34. 34.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="red"> (c) <li class="red"> (d) <div id="top">
35. 35.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
36. 36.True or false: .note is a class selector. (a) True (b) False
37. 37.True or false: #end is an id selector. (a) False (b) True
38. 38.🎯 Which element does the selector .note style? (a) <h1 class="note"> (b) <h1 id="note"> (c) <h1 class="big"> (d) <h2 class="red">
39. 39.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) .top (b) span (c) .note (d) .menu
40. 40.True or false: .note is an id selector. (a) True (b) False

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