CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 962 · 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 .big style? (a) <div class="big"> (b) <span class="box"> (c) <div class="red"> (d) <div id="big">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="main">Hello</h2> (a) #main (b) li (c) #menu (d) .note
3. 3.True or false: li is a class selector. (a) False (b) True
4. 4.🎯 Which element does the selector h2 style? (a) <h2 class="big"> (b) <li> (c) <div class="big"> (d) <span id="top">
5. 5.🎯 Which element does the selector h1 style? (a) <h1 class="star"> (b) <div id="end"> (c) <li class="star"> (d) <h2>
6. 6.True or false: #logo is a class selector. (a) False (b) True
7. 7.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which element does the selector .box style? (a) <h2 id="box"> (b) <h2 class="box"> (c) <li class="menu"> (d) <h2 class="star">
9. 9.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) .logo (b) h2 (c) #logo (d) .red
11. 11.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
12. 12.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span id="main"> (c) <span class="intro"> (d) <p class="box">
13. 13.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <h2 class="red"> (d) <li id="logo">
14. 14.🎯 Which CSS selector matches this element?
    <div class="red" id="end">Hello</div> (a) #end (b) .box (c) span (d) #hero
15. 15.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
16. 16.🎯 Which CSS selector matches this element?
    <span class="big" id="logo">Hello</span> (a) #big (b) .big (c) .red (d) .logo
17. 17.🎯 Which element does the selector .note style? (a) <span id="note"> (b) <span class="big"> (c) <p class="red"> (d) <span class="note">
18. 18.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <p class="star"> (c) <li id="end"> (d) <h1>
19. 19.True or false: #top is an id selector. (a) True (b) False
20. 20.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
21. 21.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <h1 class="menu"> (c) <p id="box"> (d) <p class="box">
22. 22.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
23. 23.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
24. 24.True or false: .note is an element selector. (a) False (b) True
25. 25.True or false: h1 is an element selector. (a) False (b) True
26. 26.True or false: .note is a class selector. (a) False (b) True
27. 27.True or false: .star is a class selector. (a) False (b) True
28. 28.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 Which CSS selector matches this element?
    <div class="box" id="hero">Hello</div> (a) #top (b) div (c) #box (d) .star
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="box" id="intro">Hello</h1> (a) h1 (b) .intro (c) #box (d) #main
31. 31.True or false: body is an element selector. (a) False (b) True
32. 32.🎯 Which element does the selector #main style? (a) <h2 id="logo"> (b) <li class="menu"> (c) <h2 id="main"> (d) <h2 class="main">
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) li (b) #menu (c) h2 (d) .note
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .menu (b) h2 (c) .hero (d) li
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) h2 (c) #intro (d) #top
36. 36.🎯 Which element does the selector span style? (a) <span class="note"> (b) <h1 class="note"> (c) <p> (d) <h2 id="top">
37. 37.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) #intro (b) .top (c) .star (d) #star
38. 38.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #logo (b) h1 (c) .big (d) .main
39. 39.True or false: .menu is an element selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) #top (b) .big (c) #note (d) h2

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