CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 697 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="box" id="logo">Hello</h2> (a) .logo (b) .box (c) li (d) #box
3. 3.🎯 Which element does the selector h2 style? (a) <li> (b) <h2 class="box"> (c) <div class="box"> (d) <span id="end">
4. 4.🎯 Which CSS selector matches this element?
   <div class="red" id="logo">Hello</div> (a) span (b) #logo (c) .box (d) #red
5. 5.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
6. 6.🎯 Which element does the selector #intro style? (a) <li id="intro"> (b) <div class="big"> (c) <li id="main"> (d) <li class="intro">
7. 7.True or false: p is an id selector. (a) True (b) False
8. 8.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
9. 9.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h1> (c) <li id="top"> (d) <h2 class="menu">
10. 10.True or false: img is a class selector. (a) True (b) False
11. 11.True or false: li is a class selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .note (b) .top (c) #intro (d) p
13. 13.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
14. 14.True or false: body is an element selector. (a) False (b) True
15. 15.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
16. 16.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #logo (b) #big (c) #main (d) h1
17. 17.True or false: #logo is a class selector. (a) False (b) True
18. 18.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <li class="big"> (c) <h2> (d) <h1 class="big">
19. 19.🎯 Which element does the selector h1 style? (a) <h1 class="menu"> (b) <h2> (c) <li class="menu"> (d) <div id="intro">
20. 20.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) h1 (b) #box (c) .star (d) #logo
21. 21.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) p (b) #main (c) .red (d) .main
22. 22.True or false: img is an id selector. (a) True (b) False
23. 23.True or false: #main is an id selector. (a) False (b) True
24. 24.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="end"> (c) <h1 class="box"> (d) <li class="box">
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) h2 (b) #note (c) #hero (d) .note
26. 26.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h2 class="red"> (c) <h1 id="end"> (d) <h1 id="hero">
27. 27.True or false: #hero is an element selector. (a) False (b) True
28. 28.True or false: .big is an id selector. (a) True (b) False
29. 29.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) #top (b) div (c) #note (d) #hero
30. 30.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <p class="box"> (c) <p id="box"> (d) <h1 class="menu">
31. 31.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector li style? (a) <div> (b) <span class="red"> (c) <p id="hero"> (d) <li class="red">
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) .hero (b) .menu (c) .note (d) #top
34. 34.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
35. 35.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) p (b) #star (c) .hero (d) #top
36. 36.True or false: .menu is an element selector. (a) True (b) False
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) li (b) #box (c) #top (d) #intro
38. 38.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .menu (b) #star (c) #intro (d) #main
40. 40.🎯 Which element does the selector .menu style? (a) <li class="menu"> (b) <div class="big"> (c) <li id="menu"> (d) <li class="note">

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