CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 930 · 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.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="note"> (c) <div id="main"> (d) <li class="note">
3. 3.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
4. 4.🎯 Which element does the selector div style? (a) <div class="red"> (b) <p class="red"> (c) <span> (d) <h1 id="main">
5. 5.🎯 Which element does the selector p style? (a) <p class="box"> (b) <li id="intro"> (c) <h2 class="box"> (d) <h1>
6. 6.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
7. 7.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
8. 8.True or false: .card is a class selector. (a) False (b) True
9. 9.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
11. 11.True or false: .big is an id selector. (a) False (b) True
12. 12.🎯 Which element does the selector .menu style? (a) <h1 class="big"> (b) <p class="note"> (c) <p class="menu"> (d) <p id="menu">
13. 13.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) #main (b) #intro (c) #note (d) li
15. 15.🎯 Which element does the selector .big style? (a) <h1 id="big"> (b) <h1 class="red"> (c) <h2 class="box"> (d) <h1 class="big">
16. 16.🎯 Which element does the selector .menu style? (a) <h1 id="menu"> (b) <h1 class="note"> (c) <h1 class="menu"> (d) <h2 class="big">
17. 17.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
18. 18.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) #logo (b) span (c) div (d) .note
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) h1 (b) #logo (c) .main (d) h2
20. 20.True or false: .star is an id selector. (a) True (b) False
21. 21.🎯 Which element does the selector .box style? (a) <div class="star"> (b) <span class="menu"> (c) <div id="box"> (d) <div class="box">
22. 22.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="big"> (c) <div id="main"> (d) <li class="big">
23. 23.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
24. 24.🎯 Which element does the selector #top style? (a) <li id="top"> (b) <li class="top"> (c) <div class="note"> (d) <li id="intro">
25. 25.🎯 Can many elements share the same class? (a) Yes (b) No
26. 26.True or false: .big is a class selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) .end (b) #end (c) .box (d) h2
28. 28.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #big (b) .red (c) #hero (d) h1
29. 29.True or false: #main is an element selector. (a) False (b) True
30. 30.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <p class="box"> (d) <span class="big">
31. 31.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
33. 33.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
34. 34.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
35. 35.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <span class="box"> (c) <div id="intro"> (d) <div id="top">
36. 36.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) .box (b) #end (c) #logo (d) span
37. 37.🎯 Which element does the selector h1 style? (a) <li class="menu"> (b) <div id="top"> (c) <h2> (d) <h1 class="menu">
38. 38.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="star"> (d) <li class="menu">
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) #star (b) h2 (c) .menu (d) #logo

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