CSS Worksheet: Selectors Class and Id

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

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