CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 914 · 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 span style? (a) <h1 class="star"> (b) <p> (c) <h2 id="top"> (d) <span class="star">
2. 2.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="note" id="logo">Hello</h2> (a) #note (b) .big (c) .note (d) .logo
4. 4.🎯 Which element does the selector h2 style? (a) <li> (b) <h2 class="big"> (c) <span id="top"> (d) <div class="big">
5. 5.🎯 Which CSS selector matches this element?
   <div class="note" id="top">Hello</div> (a) .note (b) #note (c) span (d) .big
6. 6.True or false: li is a class selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <span class="red" id="hero">Hello</span> (a) .hero (b) #top (c) p (d) .red
8. 8.🎯 Which CSS selector matches this element?
   <p class="big" id="logo">Hello</p> (a) .red (b) #big (c) h1 (d) #logo
9. 9.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 Which element does the selector .box style? (a) <li class="star"> (b) <li class="box"> (c) <div class="menu"> (d) <li id="box">
11. 11.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
12. 12.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li id="end"> (c) <div class="red"> (d) <li class="end">
14. 14.🎯 Which element does the selector .box style? (a) <span id="box"> (b) <span class="box"> (c) <span class="star"> (d) <p class="menu">
15. 15.True or false: #top is an id selector. (a) False (b) True
16. 16.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
17. 17.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
18. 18.🎯 Which element does the selector h1 style? (a) <div id="logo"> (b) <h2> (c) <h1 class="star"> (d) <li class="star">
19. 19.True or false: #end is an id selector. (a) True (b) False
20. 20.True or false: img is a class selector. (a) True (b) False
21. 21.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) .main (b) #big (c) .red (d) #main
22. 22.🎯 Which CSS selector matches this element?
    <p class="note" id="hero">Hello</p> (a) #note (b) #top (c) .hero (d) p
23. 23.🎯 Which element does the selector #intro style? (a) <h2 id="main"> (b) <h2 class="intro"> (c) <li class="note"> (d) <h2 id="intro">
24. 24.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
25. 25.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .big (b) .note (c) #note (d) #logo
26. 26.True or false: img is an element selector. (a) False (b) True
27. 27.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="big"> (c) <p class="big"> (d) <li id="top">
28. 28.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
29. 29.🎯 Can many elements share the same class? (a) No (b) Yes
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) #top (b) #note (c) .hero (d) #hero
31. 31.True or false: .note is an element selector. (a) True (b) False
32. 32.True or false: #logo is an element selector. (a) False (b) True
33. 33.True or false: img is an id selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) li (b) #red (c) h2 (d) .intro
35. 35.🎯 Which element does the selector #main style? (a) <h1 id="logo"> (b) <h1 class="main"> (c) <h1 id="main"> (d) <h2 class="star">
36. 36.True or false: .note is a class selector. (a) False (b) True
37. 37.🎯 Which element does the selector div style? (a) <div class="note"> (b) <span> (c) <p class="note"> (d) <h1 id="main">
38. 38.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) #menu (b) #intro (c) .menu (d) .note
39. 39.True or false: body is an id selector. (a) False (b) True
40. 40.🎯 Which element does the selector #intro style? (a) <span class="box"> (b) <div id="main"> (c) <div id="intro"> (d) <div class="intro">

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