CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 883 · 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="end">Hello</div> (a) .end (b) #end (c) #note (d) span
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="hero">Hello</h2> (a) .note (b) .hero (c) #hero (d) #top
3. 3.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
4. 4.🎯 Which CSS selector matches this element?
   <div class="big" id="intro">Hello</div> (a) .red (b) #big (c) .big (d) #main
5. 5.🎯 Which element does the selector .menu style? (a) <li class="note"> (b) <li class="menu"> (c) <div class="big"> (d) <li id="menu">
6. 6.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <p class="top"> (c) <h1 class="menu"> (d) <p id="top">
7. 7.🎯 Which element does the selector .red style? (a) <h1 class="box"> (b) <h2 class="star"> (c) <h1 id="red"> (d) <h1 class="red">
8. 8.True or false: .big is a class selector. (a) False (b) True
9. 9.🎯 Which element does the selector .big style? (a) <h1 id="big"> (b) <h1 class="red"> (c) <h2 class="box"> (d) <h1 class="big">
10. 10.🎯 Which element does the selector .big style? (a) <div id="big"> (b) <div class="big"> (c) <div class="red"> (d) <span class="box">
11. 11.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <div class="box"> (d) <h1 id="hero">
12. 12.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) .red (b) .main (c) h1 (d) #main
13. 13.🎯 Which element does the selector #hero style? (a) <li id="top"> (b) <div class="red"> (c) <li class="hero"> (d) <li id="hero">
14. 14.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 class="red"> (c) <h2 id="red"> (d) <li class="star">
15. 15.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .end (b) p (c) #hero (d) .star
16. 16.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="note"> (c) <li class="red"> (d) <h2 class="big">
17. 17.🎯 Which element does the selector #intro style? (a) <div class="intro"> (b) <span class="star"> (c) <div id="intro"> (d) <div id="main">
18. 18.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
19. 19.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
20. 20.True or false: h1 is an element selector. (a) False (b) True
21. 21.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) .end (b) #red (c) li (d) .red
23. 23.True or false: p is an element selector. (a) False (b) True
24. 24.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
25. 25.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <span class="intro"> (c) <p class="box"> (d) <span id="intro">
26. 26.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
27. 27.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
28. 28.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .top (b) .big (c) #note (d) .note
29. 29.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="box"> (c) <h2 id="intro"> (d) <h2 id="main">
30. 30.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <span class="note"> (c) <div id="star"> (d) <div class="star">
31. 31.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
32. 32.True or false: h1 is an id selector. (a) False (b) True
33. 33.🎯 Which element does the selector #end style? (a) <div class="menu"> (b) <li id="hero"> (c) <li class="end"> (d) <li id="end">
34. 34.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
35. 35.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
36. 36.True or false: #hero is an id selector. (a) True (b) False
37. 37.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .big (b) .top (c) #note (d) p
39. 39.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) .top (b) h1 (c) h2 (d) #intro
40. 40.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <h1 class="star"> (c) <span class="star"> (d) <p>

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