CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 231 · 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 #logo style? (a) <li class="note"> (b) <h2 class="logo"> (c) <h2 id="logo"> (d) <h2 id="end">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="note" id="intro">Hello</h2> (a) #main (b) .intro (c) #note (d) .note
3. 3.True or false: #top is an id selector. (a) True (b) False
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.🎯 Which CSS selector matches this element?
   <p class="note" id="main">Hello</p> (a) #logo (b) #main (c) #note (d) h1
6. 6.🎯 Which element does the selector li style? (a) <div> (b) <span class="menu"> (c) <li class="menu"> (d) <p id="top">
7. 7.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="red"> (c) <div id="hero"> (d) <h1 class="red">
8. 8.🎯 Which element does the selector .box style? (a) <div class="box"> (b) <div id="box"> (c) <span class="menu"> (d) <div class="star">
9. 9.🎯 Which CSS selector matches this element?
   <li class="star" id="logo">Hello</li> (a) .menu (b) #logo (c) #star (d) #end
10. 10.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <li class="big"> (c) <h2 id="menu"> (d) <h2 class="menu">
11. 11.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="intro"> (c) <h1 class="big"> (d) <span class="big">
12. 12.🎯 Which sign starts an id selector? (a) @ (b) . (c) # (d) &
13. 13.🎯 Which element does the selector li style? (a) <span class="box"> (b) <div> (c) <p id="end"> (d) <li class="box">
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: body is an id selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) #hero (b) .menu (c) .end (d) .star
17. 17.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h2 class="box"> (c) <h1 id="top"> (d) <h1 id="intro">
18. 18.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
19. 19.True or false: .card is a class selector. (a) True (b) False
20. 20.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) .note (b) #menu (c) .menu (d) .intro
21. 21.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
23. 23.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
24. 24.True or false: #main is an element selector. (a) True (b) False
25. 25.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
26. 26.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="red"> (c) <p class="red"> (d) <li id="main">
27. 27.🎯 Which CSS selector matches this element?
    <li class="note" id="end">Hello</li> (a) .big (b) .end (c) #note (d) .note
28. 28.🎯 Which element does the selector div style? (a) <h1 id="hero"> (b) <div class="box"> (c) <span> (d) <p class="box">
29. 29.True or false: .note is an element selector. (a) False (b) True
30. 30.🎯 Which element does the selector #hero style? (a) <h1 class="box"> (b) <p class="hero"> (c) <p id="hero"> (d) <p id="top">
31. 31.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) h2 (b) .main (c) .big (d) #logo
33. 33.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) #box (b) p (c) .hero (d) .box
34. 34.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
36. 36.🎯 Which element does the selector div style? (a) <h1 id="intro"> (b) <p class="note"> (c) <span> (d) <div class="note">
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) h1 (b) .star (c) #box (d) #top
38. 38.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) #big (b) #intro (c) .intro (d) .red
40. 40.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <span class="star"> (c) <p class="note"> (d) <span id="star">

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