CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 64 · 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.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
3. 3.True or false: .big is an id selector. (a) True (b) False
4. 4.True or false: h1 is an id selector. (a) True (b) False
5. 5.True or false: li is a class selector. (a) True (b) False
6. 6.True or false: #main is an element selector. (a) True (b) False
7. 7.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <li class="big" id="end">Hello</li> (a) div (b) #hero (c) #big (d) #end
9. 9.True or false: p is an id selector. (a) False (b) True
10. 10.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
11. 11.True or false: .card is an id selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) li (b) .big (c) #note (d) .main
13. 13.🎯 Which element does the selector #main style? (a) <p class="big"> (b) <span class="main"> (c) <span id="logo"> (d) <span id="main">
14. 14.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 Which element does the selector div style? (a) <div class="box"> (b) <h1 id="end"> (c) <p class="box"> (d) <span>
17. 17.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 5 (d) 2
18. 18.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="top"> (c) <p class="star"> (d) <div class="star">
19. 19.🎯 Which element does the selector #top style? (a) <h1 class="big"> (b) <p id="intro"> (c) <p class="top"> (d) <p id="top">
20. 20.True or false: .menu is an element selector. (a) False (b) True
21. 21.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
22. 22.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
23. 23.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <div class="red"> (c) <span class="star"> (d) <div class="box">
24. 24.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div class="logo"> (c) <span class="star"> (d) <div id="end">
25. 25.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <div class="menu"> (c) <li id="intro"> (d) <li id="main">
26. 26.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) .top (b) #intro (c) .big (d) #top
27. 27.🎯 Which element does the selector li style? (a) <span class="note"> (b) <div> (c) <p id="logo"> (d) <li class="note">
28. 28.True or false: li is an id selector. (a) True (b) False
29. 29.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <span class="menu"> (c) <p> (d) <h1 class="menu">
30. 30.🎯 Which element does the selector #logo style? (a) <h1 id="end"> (b) <h1 class="logo"> (c) <h2 class="red"> (d) <h1 id="logo">
31. 31.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) span (b) #logo (c) .star (d) .logo
32. 32.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) #end (b) div (c) span (d) .logo
33. 33.🎯 Which element does the selector #logo style? (a) <p id="end"> (b) <h1 class="big"> (c) <p class="logo"> (d) <p id="logo">
34. 34.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) #big (b) .red (c) #end (d) span
35. 35.True or false: #hero is a class selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <li class="menu" id="intro">Hello</li> (a) #main (b) .note (c) .menu (d) .intro
37. 37.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
38. 38.🎯 Which element does the selector .box style? (a) <h1 class="box"> (b) <h1 id="box"> (c) <h1 class="star"> (d) <h2 class="menu">
39. 39.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
40. 40.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) #menu (b) #intro (c) .note (d) #top

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