CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 512 · 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 #top style? (a) <li id="intro"> (b) <div class="big"> (c) <li id="top"> (d) <li class="top">
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="end">Hello</h1> (a) .end (b) h1 (c) #menu (d) #hero
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="hero">Hello</h2> (a) .menu (b) #menu (c) .hero (d) #top
4. 4.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
5. 5.🎯 Which element does the selector #main style? (a) <div class="main"> (b) <div id="logo"> (c) <span class="box"> (d) <div id="main">
6. 6.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
7. 7.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <span class="menu" id="intro">Hello</span> (a) .note (b) #menu (c) .menu (d) p
9. 9.True or false: .card is an id selector. (a) False (b) True
10. 10.🎯 Which element does the selector .star style? (a) <h2 class="menu"> (b) <h2 id="star"> (c) <h2 class="star"> (d) <li class="note">
11. 11.🎯 Which CSS selector matches this element?
    <div class="red" id="end">Hello</div> (a) .box (b) .red (c) #red (d) .end
12. 12.True or false: img is an id selector. (a) False (b) True
13. 13.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li> (a) .top (b) .red (c) .box (d) #red
14. 14.True or false: h1 is a class selector. (a) True (b) False
15. 15.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) div (b) #end (c) .big (d) .logo
16. 16.True or false: #logo is an id selector. (a) True (b) False
17. 17.🎯 Can many elements share the same class? (a) Yes (b) No
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) li (b) #end (c) .logo (d) .note
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="box" id="end">Hello</h2> (a) #end (b) .star (c) li (d) #box
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) #box (b) .main (c) #logo (d) h1
21. 21.🎯 Which element does the selector .big style? (a) <h2 id="big"> (b) <h2 class="big"> (c) <h2 class="red"> (d) <li class="box">
22. 22.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) .red (b) h1 (c) p (d) #main
23. 23.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
25. 25.True or false: #hero is an element selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) p (b) h1 (c) #big (d) #hero
27. 27.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
28. 28.🎯 Which element does the selector #main style? (a) <h1 id="main"> (b) <h2 class="big"> (c) <h1 id="logo"> (d) <h1 class="main">
29. 29.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h2 class="box"> (c) <h1> (d) <p class="box">
30. 30.True or false: .note is an id selector. (a) True (b) False
31. 31.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) #logo (b) .menu (c) .note (d) #menu
32. 32.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <h2> (c) <h1 class="star"> (d) <li class="star">
33. 33.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) #red (b) .main (c) #main (d) .box
34. 34.True or false: li is an element selector. (a) False (b) True
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) #intro (b) .box (c) .star (d) li
36. 36.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) .big (b) #logo (c) li (d) .note
38. 38.True or false: .note is a class selector. (a) True (b) False
39. 39.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
40. 40.True or false: body is an element selector. (a) True (b) False

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