CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 177 · 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 div style? (a) <h1 id="hero"> (b) <div class="note"> (c) <p class="note"> (d) <span>
2. 2.🎯 What kind of selector is .note? (a) a class selector (b) an element selector (c) an id selector
3. 3.🎯 Can many elements share the same class? (a) Yes (b) No
4. 4.True or false: .menu is a class selector. (a) True (b) False
5. 5.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="menu"> (c) <span class="menu"> (d) <h2 id="hero">
6. 6.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
7. 7.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <li id="logo"> (c) <p class="menu"> (d) <h1>
8. 8.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
9. 9.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
10. 10.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
11. 11.🎯 Which sign starts a class selector? (a) . (b) @ (c) # (d) &
12. 12.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span id="main"> (c) <span class="intro"> (d) <p class="big">
14. 14.🎯 Which element does the selector #top style? (a) <h2 id="intro"> (b) <h2 class="top"> (c) <h2 id="top"> (d) <li class="red">
15. 15.True or false: body is an id selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) #intro (b) .intro (c) #main (d) .box
17. 17.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
18. 18.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
19. 19.True or false: body is a class selector. (a) True (b) False
20. 20.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
21. 21.🎯 Which element does the selector .big style? (a) <div id="big"> (b) <div class="red"> (c) <span class="box"> (d) <div class="big">
22. 22.True or false: img is an id selector. (a) False (b) True
23. 23.🎯 Which element does the selector #main style? (a) <div class="star"> (b) <li class="main"> (c) <li id="logo"> (d) <li id="main">
24. 24.🎯 Which element does the selector #end style? (a) <li class="red"> (b) <h2 class="end"> (c) <h2 id="hero"> (d) <h2 id="end">
25. 25.True or false: #end is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) #main (b) .intro (c) .red (d) #intro
27. 27.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) .box (b) .top (c) .star (d) #intro
28. 28.🎯 Which element does the selector li style? (a) <div> (b) <li class="big"> (c) <span class="big"> (d) <p id="main">
29. 29.🎯 Which element does the selector #main style? (a) <p class="main"> (b) <p id="logo"> (c) <p id="main"> (d) <h1 class="menu">
30. 30.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) .end (b) #end (c) #note (d) h1
31. 31.True or false: #hero is an id selector. (a) False (b) True
32. 32.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 class="red"> (c) <h2 id="red"> (d) <li class="star">
33. 33.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) .big (b) .end (c) .red (d) #big
34. 34.True or false: .card is a class selector. (a) True (b) False
35. 35.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <p class="big"> (c) <h1> (d) <li id="top">
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) #logo (b) h2 (c) #note (d) .note
37. 37.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) p (b) h1 (c) #box (d) .main
38. 38.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <div id="logo"> (c) <h2> (d) <h1 class="note">
39. 39.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <h1 class="red"> (c) <p> (d) <span class="red">
40. 40.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector

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