CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 178 · 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.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="intro"> (c) <h1 class="star"> (d) <span class="star">
2. 2.True or false: #logo is a class selector. (a) False (b) True
3. 3.True or false: .big is an id selector. (a) True (b) False
4. 4.🎯 Which element does the selector .big style? (a) <p class="box"> (b) <span id="big"> (c) <span class="big"> (d) <span class="red">
5. 5.🎯 Which CSS selector matches this element?
   <h1 class="big" id="end">Hello</h1> (a) .red (b) .end (c) #hero (d) h1
6. 6.🎯 Which CSS selector matches this element?
   <span class="note" id="end">Hello</span> (a) #hero (b) .end (c) p (d) .note
7. 7.🎯 Which CSS selector matches this element?
   <li class="red" id="intro">Hello</li> (a) div (b) #main (c) .box (d) .red
8. 8.🎯 Which element does the selector span style? (a) <span class="note"> (b) <h2 id="logo"> (c) <p> (d) <h1 class="note">
9. 9.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
10. 10.True or false: #top is an element selector. (a) True (b) False
11. 11.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
12. 12.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) .end (b) #star (c) #end (d) #hero
13. 13.🎯 Which element does the selector .note style? (a) <p class="big"> (b) <p class="note"> (c) <h1 class="red"> (d) <p id="note">
14. 14.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
15. 15.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #big (b) .red (c) .end (d) h2
17. 17.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="menu"> (c) <h1 class="menu"> (d) <div id="intro">
18. 18.True or false: #logo is an id selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) #big (b) #logo (c) p (d) span
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) #big (b) .intro (c) h2 (d) h1
21. 21.True or false: .big is an element selector. (a) True (b) False
22. 22.🎯 Which element does the selector #intro style? (a) <span class="intro"> (b) <span id="main"> (c) <span id="intro"> (d) <p class="note">
23. 23.🎯 Which element does the selector p style? (a) <p class="star"> (b) <li id="logo"> (c) <h2 class="star"> (d) <h1>
24. 24.🎯 Can many elements share the same class? (a) No (b) Yes
25. 25.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
26. 26.True or false: p is an element selector. (a) False (b) True
27. 27.🎯 Which element does the selector .menu style? (a) <li id="menu"> (b) <li class="menu"> (c) <div class="big"> (d) <li class="note">
28. 28.🎯 Which element does the selector p style? (a) <h1> (b) <p class="box"> (c) <h2 class="box"> (d) <li id="top">
29. 29.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h1 class="note"> (c) <div id="logo"> (d) <h2>
30. 30.True or false: #logo is an element selector. (a) False (b) True
31. 31.🎯 Which element does the selector .menu style? (a) <div class="menu"> (b) <span class="big"> (c) <div id="menu"> (d) <div class="note">
32. 32.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) .star (b) #box (c) #main (d) .box
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) #big (b) h1 (c) #end (d) h2
34. 34.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) #logo (b) #main (c) div (d) .main
35. 35.True or false: #end is a class selector. (a) False (b) True
36. 36.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <h1 class="note"> (c) <p class="star"> (d) <p id="star">
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) .menu (b) .intro (c) h1 (d) #star
39. 39.True or false: body is an element selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) #box (b) li (c) div (d) .end

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