CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 959 · 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.True or false: body is an element selector. (a) True (b) False
2. 2.🎯 Which CSS selector matches this element?
   <li class="star" id="intro">Hello</li> (a) div (b) .menu (c) .star (d) #main
3. 3.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="menu"> (d) <li class="star">
5. 5.🎯 Which element does the selector #main style? (a) <div class="star"> (b) <li id="logo"> (c) <li id="main"> (d) <li class="main">
6. 6.True or false: #logo is an element selector. (a) True (b) False
7. 7.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="star" id="logo">Hello</h2> (a) li (b) #end (c) .star (d) .menu
9. 9.🎯 Which element does the selector #intro style? (a) <p class="intro"> (b) <h1 class="big"> (c) <p id="intro"> (d) <p id="main">
10. 10.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) span (b) .main (c) .note (d) div
11. 11.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) p (b) #big (c) .top (d) #top
12. 12.🎯 Which element does the selector #top style? (a) <h1 id="intro"> (b) <h2 class="note"> (c) <h1 id="top"> (d) <h1 class="top">
13. 13.True or false: #main is an element selector. (a) False (b) True
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) #top (b) .top (c) #intro (d) .big
16. 16.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="main"> (c) <h1> (d) <p class="star">
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) li (b) .end (c) #big (d) #end
18. 18.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
19. 19.True or false: .menu is a class selector. (a) False (b) True
20. 20.🎯 Which element does the selector #top style? (a) <p class="box"> (b) <span id="top"> (c) <span class="top"> (d) <span id="intro">
21. 21.🎯 Which element does the selector #logo style? (a) <h1 id="logo"> (b) <h2 class="red"> (c) <h1 class="logo"> (d) <h1 id="end">
22. 22.True or false: #logo is an id selector. (a) False (b) True
23. 23.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
24. 24.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <div id="top"> (c) <h2> (d) <h1 class="star">
25. 25.True or false: #hero is an element selector. (a) True (b) False
26. 26.True or false: #top is an id selector. (a) True (b) False
27. 27.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="menu">
28. 28.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <div> (c) <span class="big"> (d) <li class="big">
29. 29.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) p (b) #note (c) span (d) .big
30. 30.🎯 Which sign starts an id selector? (a) . (b) # (c) @ (d) &
31. 31.True or false: #hero is a class selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) #note (b) .end (c) #end (d) #hero
33. 33.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
34. 34.True or false: #end is a class selector. (a) False (b) True
35. 35.True or false: .menu is an id selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .star (b) .box (c) h1 (d) #hero
37. 37.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
38. 38.🎯 Which element does the selector #hero style? (a) <h1 id="top"> (b) <h1 class="hero"> (c) <h2 class="big"> (d) <h1 id="hero">
39. 39.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
40. 40.True or false: #end is an id selector. (a) True (b) False

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