CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 132 · 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.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
2. 2.🎯 Which CSS selector matches this element?
   <div class="note" id="hero">Hello</div> (a) #note (b) .big (c) .hero (d) div
3. 3.🎯 Which CSS selector matches this element?
   <div class="menu" id="hero">Hello</div> (a) #top (b) div (c) span (d) #menu
4. 4.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
5. 5.🎯 Which element does the selector #main style? (a) <p id="logo"> (b) <p class="main"> (c) <p id="main"> (d) <h1 class="note">
6. 6.🎯 Which sign starts an id selector? (a) @ (b) & (c) . (d) #
7. 7.🎯 Which element does the selector .big style? (a) <h2 class="red"> (b) <li class="box"> (c) <h2 class="big"> (d) <h2 id="big">
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="big" id="end">Hello</h2> (a) li (b) .big (c) .red (d) #hero
9. 9.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
10. 10.🎯 Which element does the selector #main style? (a) <div class="main"> (b) <div id="logo"> (c) <span class="note"> (d) <div id="main">
11. 11.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) h1 (b) h2 (c) #note (d) .big
13. 13.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) .red (b) #big (c) span (d) .big
14. 14.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
15. 15.True or false: .menu is an id selector. (a) False (b) True
16. 16.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
17. 17.True or false: li is an element selector. (a) True (b) False
18. 18.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
19. 19.True or false: .big is an id selector. (a) False (b) True
20. 20.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="note"> (c) <div class="red"> (d) <li class="big">
21. 21.🎯 Which element does the selector h1 style? (a) <h1 class="menu"> (b) <div id="main"> (c) <li class="menu"> (d) <h2>
22. 22.True or false: #hero is an element selector. (a) False (b) True
23. 23.True or false: .note is a class selector. (a) False (b) True
24. 24.🎯 Can many elements share the same class? (a) No (b) Yes
25. 25.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) #main (b) .star (c) .menu (d) #star
26. 26.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
27. 27.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) .note (b) div (c) #note (d) .main
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) #main (b) #big (c) .main (d) #logo
29. 29.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
30. 30.True or false: .big is an element selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #note (b) h1 (c) #top (d) .big
32. 32.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <p class="box"> (d) <span class="big">
33. 33.🎯 Which element does the selector #logo style? (a) <li id="logo"> (b) <li id="end"> (c) <li class="logo"> (d) <div class="box">
34. 34.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) #end (b) .logo (c) div (d) .note
35. 35.🎯 Which element does the selector li style? (a) <span class="red"> (b) <p id="main"> (c) <li class="red"> (d) <div>
36. 36.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) #star (b) .logo (c) .star (d) .menu
37. 37.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
38. 38.True or false: .card is an element selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) #box (b) h1 (c) .star (d) #end
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) li (b) .note (c) .logo (d) #note

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