CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 532 · 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 sign starts an id selector? (a) & (b) . (c) # (d) @
2. 2.🎯 Which CSS selector matches this element?
   <div class="red" id="main">Hello</div> (a) #logo (b) .box (c) #main (d) .main
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="star" id="hero">Hello</h2> (a) li (b) #star (c) #hero (d) .hero
4. 4.🎯 Which CSS selector matches this element?
   <li class="star" id="main">Hello</li> (a) .menu (b) div (c) #logo (d) .star
5. 5.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <h1 id="hero"> (d) <div class="box">
6. 6.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
7. 7.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
8. 8.True or false: .star is an id selector. (a) True (b) False
9. 9.🎯 Which element does the selector .menu style? (a) <div id="menu"> (b) <span class="big"> (c) <div class="note"> (d) <div class="menu">
10. 10.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) .note (b) .main (c) #main (d) #menu
11. 11.🎯 Which element does the selector .big style? (a) <h1 class="big"> (b) <h2 class="box"> (c) <h1 id="big"> (d) <h1 class="red">
12. 12.True or false: p is an element selector. (a) False (b) True
13. 13.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div> (a) #star (b) span (c) .menu (d) #intro
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) #menu (b) #end (c) .end (d) #hero
17. 17.🎯 Which element does the selector #end style? (a) <h2 id="hero"> (b) <h2 class="end"> (c) <li class="big"> (d) <h2 id="end">
18. 18.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) p (b) #big (c) .intro (d) .red
19. 19.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p class="note"> (c) <p id="note"> (d) <p class="big">
20. 20.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="box"> (c) <h2 class="star"> (d) <h1 class="red">
21. 21.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
22. 22.True or false: .big is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) #hero (b) #top (c) .red (d) #big
24. 24.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
25. 25.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
26. 26.True or false: #logo is a class selector. (a) True (b) False
27. 27.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li class="star"> (c) <li id="box"> (d) <li class="box">
29. 29.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .intro (b) h1 (c) #main (d) p
30. 30.🎯 Which element does the selector li style? (a) <p id="end"> (b) <span class="box"> (c) <li class="box"> (d) <div>
31. 31.True or false: .menu is an id selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) .big (b) #top (c) li (d) h2
33. 33.True or false: #main is an id selector. (a) False (b) True
34. 34.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) #logo (b) .note (c) #main (d) h2
36. 36.True or false: .card is a class selector. (a) False (b) True
37. 37.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
38. 38.True or false: p is a class selector. (a) True (b) False
39. 39.True or false: li is a class selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) .main (b) #logo (c) #note (d) .note

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