CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 741 · 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 .big? (a) an element selector (b) a class selector (c) an id selector
2. 2.🎯 Which CSS selector matches this element?
   <p class="big" id="top">Hello</p> (a) .top (b) #intro (c) h1 (d) .big
3. 3.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <h2 id="end"> (c) <li class="big"> (d) <h2 id="logo">
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.True or false: p is an id selector. (a) False (b) True
6. 6.True or false: .star is a class selector. (a) True (b) False
7. 7.🎯 Which element does the selector p style? (a) <h1> (b) <li id="end"> (c) <p class="red"> (d) <h2 class="red">
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="red" id="top">Hello</h1> (a) #top (b) #red (c) .box (d) .top
9. 9.True or false: .menu is a class selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) #logo (b) div (c) #star (d) .menu
11. 11.True or false: #end is a class selector. (a) False (b) True
12. 12.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
13. 13.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
14. 14.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
15. 15.True or false: #logo is an element selector. (a) True (b) False
16. 16.True or false: .menu is an id selector. (a) True (b) False
17. 17.🎯 Which element does the selector .big style? (a) <li id="big"> (b) <div class="box"> (c) <li class="big"> (d) <li class="red">
18. 18.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) #big (b) .hero (c) #hero (d) span
19. 19.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) #intro (b) #big (c) .intro (d) span
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 #end style? (a) <span class="end"> (b) <span id="hero"> (c) <span id="end"> (d) <p class="note">
22. 22.🎯 Which CSS selector matches this element?
    <span class="box" id="logo">Hello</span> (a) #end (b) .logo (c) #box (d) #logo
23. 23.🎯 Which element does the selector #hero style? (a) <p class="hero"> (b) <p id="top"> (c) <p id="hero"> (d) <h1 class="star">
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="logo">Hello</h1> (a) .logo (b) h1 (c) h2 (d) #end
25. 25.True or false: h1 is an id selector. (a) False (b) True
26. 26.True or false: .menu is an element selector. (a) False (b) True
27. 27.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
28. 28.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <li class="big"> (c) <h2 class="note"> (d) <h2 class="menu">
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) h1 (b) #big (c) #hero (d) h2
30. 30.True or false: body is an element selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .red (b) .box (c) .intro (d) #main
32. 32.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) div (b) #main (c) .intro (d) #box
33. 33.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <h2> (c) <div id="logo"> (d) <h1 class="red">
34. 34.🎯 Which element does the selector h2 style? (a) <h2 class="note"> (b) <li> (c) <span id="intro"> (d) <div class="note">
35. 35.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
36. 36.🎯 Which element does the selector .menu style? (a) <h1 class="big"> (b) <p class="note"> (c) <p class="menu"> (d) <p id="menu">
37. 37.True or false: #end is an id selector. (a) True (b) False
38. 38.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="hero"> (c) <div class="menu"> (d) <h2 class="menu">
39. 39.🎯 Which element does the selector .note style? (a) <div class="red"> (b) <li id="note"> (c) <li class="big"> (d) <li class="note">
40. 40.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) span (b) #intro (c) #note (d) div

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