CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 877 · 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 CSS selector matches this element?
   <h2 class="note" id="hero">Hello</h2> (a) .big (b) li (c) #top (d) #hero
2. 2.🎯 Which CSS selector matches this element?
   <span class="big" id="hero">Hello</span> (a) #top (b) p (c) .hero (d) span
3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
4. 4.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 class="note"> (c) <h1 id="note"> (d) <h2 class="red">
5. 5.True or false: #logo is an element selector. (a) True (b) False
6. 6.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="star"> (c) <p class="star"> (d) <li id="logo">
7. 7.🎯 Which CSS selector matches this element?
   <p class="big" id="top">Hello</p> (a) .red (b) .big (c) .top (d) #intro
8. 8.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
9. 9.🎯 Which element does the selector .big style? (a) <div class="box"> (b) <li class="red"> (c) <li id="big"> (d) <li class="big">
10. 10.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .top (b) #menu (c) #intro (d) .menu
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) .menu (b) h2 (c) h1 (d) .top
12. 12.🎯 Which element does the selector #intro style? (a) <p class="star"> (b) <span class="intro"> (c) <span id="main"> (d) <span id="intro">
13. 13.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) h1 (b) #intro (c) .note (d) #main
14. 14.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
15. 15.🎯 Which CSS selector matches this element?
    <p class="big" id="logo">Hello</p> (a) #end (b) h1 (c) p (d) .logo
16. 16.True or false: img is a class selector. (a) True (b) False
17. 17.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <span class="big"> (c) <div id="logo"> (d) <div class="logo">
19. 19.True or false: #main is a class selector. (a) False (b) True
20. 20.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
21. 21.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) .hero (b) #menu (c) div (d) #top
22. 22.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) .note (b) span (c) .big (d) #note
23. 23.True or false: .star is a class selector. (a) True (b) False
24. 24.True or false: li is an id selector. (a) True (b) False
25. 25.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div class="box"> (c) <div id="box"> (d) <div class="star">
26. 26.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <h1 class="big"> (c) <span class="big"> (d) <p>
27. 27.True or false: .card is a class selector. (a) False (b) True
28. 28.True or false: #end is a class selector. (a) False (b) True
29. 29.True or false: h1 is a class selector. (a) False (b) True
30. 30.🎯 Which element does the selector .star style? (a) <h2 class="note"> (b) <h1 class="star"> (c) <h1 class="menu"> (d) <h1 id="star">
31. 31.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
33. 33.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
34. 34.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <h2 class="red"> (d) <li id="intro">
36. 36.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <span id="main"> (c) <h2 class="star"> (d) <li>
37. 37.True or false: #main is an id selector. (a) False (b) True
38. 38.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) .intro (b) p (c) #intro (d) .box
39. 39.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) .logo (b) #end (c) span (d) div
40. 40.🎯 Which element does the selector span style? (a) <h1 class="red"> (b) <h2 id="end"> (c) <span class="red"> (d) <p>

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