CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 412 · 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 .star style? (a) <h1 class="menu"> (b) <h2 class="note"> (c) <h1 id="star"> (d) <h1 class="star">
2. 2.🎯 Which element does the selector #intro style? (a) <h2 class="box"> (b) <h1 class="intro"> (c) <h1 id="main"> (d) <h1 id="intro">
3. 3.True or false: #logo is an id selector. (a) True (b) False
4. 4.True or false: h1 is a class selector. (a) False (b) True
5. 5.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
6. 6.True or false: #top is an id selector. (a) False (b) True
7. 7.🎯 Which element does the selector .red style? (a) <h2 class="star"> (b) <h1 id="red"> (c) <h1 class="red"> (d) <h1 class="box">
8. 8.True or false: .card is an id selector. (a) False (b) True
9. 9.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <li class="big"> (c) <div id="hero"> (d) <h2>
10. 10.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) #note (b) .main (c) #logo (d) p
11. 11.🎯 Which element does the selector div style? (a) <p class="big"> (b) <span> (c) <div class="big"> (d) <h1 id="intro">
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) h1 (b) h2 (c) #big (d) .red
13. 13.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <p class="star"> (c) <h1> (d) <li id="logo">
14. 14.True or false: #hero is an id selector. (a) False (b) True
15. 15.🎯 Which element does the selector div style? (a) <div class="box"> (b) <span> (c) <p class="box"> (d) <h1 id="main">
16. 16.True or false: .card is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) .top (b) #intro (c) .box (d) div
18. 18.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
19. 19.🎯 Can many elements share the same class? (a) No (b) Yes
20. 20.True or false: img is an element selector. (a) True (b) False
21. 21.🎯 Which element does the selector .menu style? (a) <h1 class="menu"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="note">
22. 22.True or false: #top is a class selector. (a) True (b) False
23. 23.True or false: #hero is an element selector. (a) False (b) True
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) #intro (b) #red (c) .intro (d) #main
25. 25.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) #logo (b) span (c) p (d) .note
26. 26.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which element does the selector #intro style? (a) <div class="menu"> (b) <li class="intro"> (c) <li id="main"> (d) <li id="intro">
29. 29.🎯 Which element does the selector #top style? (a) <h1 id="top"> (b) <h2 class="note"> (c) <h1 id="intro"> (d) <h1 class="top">
30. 30.🎯 Which element does the selector p style? (a) <p class="box"> (b) <li id="top"> (c) <h1> (d) <h2 class="box">
31. 31.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <h2 class="box"> (c) <span id="hero"> (d) <li>
33. 33.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) p (b) .note (c) #logo (d) #menu
35. 35.🎯 Which element does the selector #main style? (a) <li id="main"> (b) <li class="main"> (c) <div class="red"> (d) <li id="logo">
36. 36.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which element does the selector li style? (a) <p id="logo"> (b) <li class="red"> (c) <span class="red"> (d) <div>
38. 38.True or false: body is a class selector. (a) True (b) False
39. 39.🎯 Which element does the selector .red style? (a) <h2 class="red"> (b) <h2 class="box"> (c) <li class="star"> (d) <h2 id="red">
40. 40.🎯 Which element does the selector .menu style? (a) <h2 class="menu"> (b) <h2 class="note"> (c) <li class="big"> (d) <h2 id="menu">

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