CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 368 · 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?
   <div class="note" id="intro">Hello</div> (a) .big (b) #intro (c) span (d) #main
2. 2.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
3. 3.🎯 Which CSS selector matches this element?
   <div class="star" id="logo">Hello</div> (a) span (b) .logo (c) #logo (d) #end
4. 4.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <p class="menu"> (c) <h1> (d) <li id="intro">
5. 5.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
6. 6.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
7. 7.🎯 Which CSS selector matches this element?
   <p class="red" id="end">Hello</p> (a) .end (b) h1 (c) p (d) #red
8. 8.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
9. 9.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
10. 10.True or false: body is an element selector. (a) False (b) True
11. 11.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="box"> (c) <h2 class="star"> (d) <h1 class="red">
12. 12.🎯 Which element does the selector #logo style? (a) <div class="logo"> (b) <div id="end"> (c) <div id="logo"> (d) <span class="note">
13. 13.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="star"> (c) <h2 id="main"> (d) <h2 id="intro">
14. 14.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="red"> (c) <span class="red"> (d) <h2 id="hero">
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) #note (b) #end (c) .note (d) .logo
16. 16.True or false: .big is a class selector. (a) False (b) True
17. 17.🎯 Which element does the selector #end style? (a) <p class="end"> (b) <p id="end"> (c) <h1 class="note"> (d) <p id="hero">
18. 18.True or false: #logo is an id selector. (a) True (b) False
19. 19.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
20. 20.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) #hero (b) .end (c) #end (d) #menu
21. 21.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div id="star"> (c) <div class="star"> (d) <div class="menu">
22. 22.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
23. 23.🎯 Which element does the selector .big style? (a) <h1 class="big"> (b) <h1 id="big"> (c) <h1 class="red"> (d) <h2 class="box">
24. 24.🎯 Which element does the selector #intro style? (a) <div class="box"> (b) <li id="main"> (c) <li id="intro"> (d) <li class="intro">
25. 25.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <p id="hero"> (c) <h1 class="red"> (d) <p class="hero">
26. 26.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #
27. 27.🎯 Can many elements share the same class? (a) Yes (b) No
28. 28.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="menu">
29. 29.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .note (b) li (c) div (d) .top
30. 30.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
31. 31.🎯 Which element does the selector .big style? (a) <div id="big"> (b) <span class="box"> (c) <div class="red"> (d) <div class="big">
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) #end (b) .big (c) li (d) #big
33. 33.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) #end (b) #menu (c) .logo (d) #logo
35. 35.True or false: body is a class selector. (a) True (b) False
36. 36.True or false: body is an id selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <div class="big" id="main">Hello</div> (a) div (b) .main (c) .red (d) #logo
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .note (b) #menu (c) h1 (d) #main
39. 39.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
40. 40.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector

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