CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 534 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which element does the selector #hero style? (a) <li id="top"> (b) <li id="hero"> (c) <li class="hero"> (d) <div class="menu">
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="big" id="top">Hello</h1> (a) #intro (b) .top (c) .big (d) h2
4. 4.🎯 Which CSS selector matches this element?
   <p class="box" id="intro">Hello</p> (a) .intro (b) h1 (c) #box (d) #intro
5. 5.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="red" id="end">Hello</h2> (a) #end (b) #red (c) li (d) #hero
7. 7.🎯 Which element does the selector div style? (a) <span> (b) <div class="menu"> (c) <p class="menu"> (d) <h1 id="hero">
8. 8.🎯 Which element does the selector .red style? (a) <p class="red"> (b) <p class="box"> (c) <p id="red"> (d) <h1 class="star">
9. 9.🎯 Which CSS selector matches this element?
   <h2 class="box" id="hero">Hello</h2> (a) #hero (b) #box (c) .star (d) #top
10. 10.True or false: .note is an element selector. (a) True (b) False
11. 11.True or false: p is a class selector. (a) False (b) True
12. 12.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="star"> (c) <span id="box"> (d) <span class="box">
13. 13.True or false: body is a class selector. (a) False (b) True
14. 14.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
15. 15.True or false: img is a class selector. (a) True (b) False
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="box" id="main">Hello</h2> (a) .main (b) .star (c) li (d) #main
17. 17.True or false: #top is a class selector. (a) False (b) True
18. 18.🎯 Which element does the selector #end style? (a) <div id="hero"> (b) <span class="big"> (c) <div class="end"> (d) <div id="end">
19. 19.True or false: .menu is a class selector. (a) True (b) False
20. 20.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) h2 (b) li (c) .hero (d) #box
21. 21.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) p (b) .menu (c) h1 (d) #star
22. 22.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) #logo (b) .big (c) .note (d) #note
23. 23.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) p (b) #note (c) h1 (d) #end
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1> (a) h2 (b) #logo (c) #main (d) .main
25. 25.🎯 Which element does the selector div style? (a) <p class="box"> (b) <div class="box"> (c) <span> (d) <h1 id="top">
26. 26.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
27. 27.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
28. 28.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="box" id="main">Hello</h2> (a) .star (b) #logo (c) .main (d) h2
31. 31.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
32. 32.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) div (b) .menu (c) .logo (d) span
33. 33.True or false: #hero is an id selector. (a) False (b) True
34. 34.🎯 Which element does the selector .menu style? (a) <li class="big"> (b) <h2 class="note"> (c) <h2 id="menu"> (d) <h2 class="menu">
35. 35.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) li (b) div (c) #menu (d) .hero
36. 36.True or false: .note is an id selector. (a) False (b) True
37. 37.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
38. 38.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
39. 39.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
40. 40.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <span class="menu"> (c) <span id="star"> (d) <p class="note">

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