CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 791 · 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 element does the selector h1 style? (a) <h2> (b) <div id="top"> (c) <li class="red"> (d) <h1 class="red">
2. 2.🎯 Can many elements share the same class? (a) Yes (b) No
3. 3.True or false: .note is a class selector. (a) True (b) False
4. 4.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
5. 5.🎯 Which element does the selector p style? (a) <h1> (b) <p class="menu"> (c) <li id="logo"> (d) <h2 class="menu">
6. 6.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <li class="menu"> (c) <h2 id="end"> (d) <h2 id="logo">
7. 7.🎯 Which element does the selector #intro style? (a) <span class="intro"> (b) <p class="menu"> (c) <span id="main"> (d) <span id="intro">
8. 8.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
9. 9.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="red" id="hero">Hello</h1> (a) #red (b) #top (c) #hero (d) .box
11. 11.True or false: li is an element selector. (a) False (b) True
12. 12.🎯 Which element does the selector li style? (a) <div> (b) <li class="menu"> (c) <p id="end"> (d) <span class="menu">
13. 13.True or false: img is an element selector. (a) True (b) False
14. 14.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
15. 15.True or false: #hero is a class selector. (a) False (b) True
16. 16.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
17. 17.True or false: .big is an id selector. (a) True (b) False
18. 18.True or false: body is a class selector. (a) True (b) False
19. 19.🎯 Which element does the selector #top style? (a) <span class="star"> (b) <div id="intro"> (c) <div id="top"> (d) <div class="top">
20. 20.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
21. 21.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
22. 22.🎯 Which element does the selector .box style? (a) <h2 id="box"> (b) <h2 class="star"> (c) <li class="menu"> (d) <h2 class="box">
23. 23.🎯 Which element does the selector #end style? (a) <span class="note"> (b) <div class="end"> (c) <div id="end"> (d) <div id="hero">
24. 24.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #big (b) .hero (c) .big (d) #top
25. 25.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) h1 (b) .big (c) .red (d) .top
26. 26.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) #hero (b) #end (c) .star (d) #box
28. 28.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) div (b) #top (c) .red (d) .top
29. 29.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) div (b) #red (c) #logo (d) .logo
30. 30.True or false: .card is an id selector. (a) True (b) False
31. 31.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
32. 32.True or false: .big is a class selector. (a) False (b) True
33. 33.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h1 id="hero"> (c) <h2 class="big"> (d) <h1 id="end">
34. 34.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span class="red"> (c) <p class="star"> (d) <span id="red">
35. 35.True or false: .note is an id selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) .end (b) div (c) li (d) #hero
37. 37.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
38. 38.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .note (b) li (c) #menu (d) .top
40. 40.True or false: .card is a class selector. (a) False (b) True

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