CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 195 · 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 CSS selector matches this element?
   <p class="note" id="hero">Hello</p> (a) p (b) #top (c) #note (d) h1
2. 2.🎯 Which CSS selector matches this element?
   <span class="box" id="hero">Hello</span> (a) .star (b) p (c) #hero (d) #top
3. 3.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
4. 4.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
5. 5.True or false: p is an id selector. (a) False (b) True
6. 6.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
7. 7.🎯 Can many elements share the same class? (a) Yes (b) No
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="star" id="top">Hello</h1> (a) h1 (b) #star (c) .menu (d) #intro
9. 9.🎯 Which element does the selector .box style? (a) <div id="box"> (b) <span class="menu"> (c) <div class="box"> (d) <div class="star">
10. 10.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) #logo (b) .main (c) .box (d) #box
11. 11.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
12. 12.True or false: .menu is a class selector. (a) False (b) True
13. 13.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
14. 14.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
15. 15.True or false: .note is a class selector. (a) False (b) True
16. 16.True or false: #top is an element selector. (a) True (b) False
17. 17.True or false: body is an id selector. (a) False (b) True
18. 18.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
19. 19.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .note (b) p (c) h1 (d) #menu
20. 20.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
21. 21.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
22. 22.🎯 Which element does the selector h2 style? (a) <span id="hero"> (b) <div class="star"> (c) <li> (d) <h2 class="star">
23. 23.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="note"> (c) <span class="note"> (d) <h2 id="top">
25. 25.True or false: #main is an id selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #top (b) p (c) .red (d) #big
27. 27.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
28. 28.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <h1> (c) <li id="logo"> (d) <p class="star">
29. 29.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) span (b) #box (c) #top (d) #intro
30. 30.True or false: p is a class selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) #logo (b) .main (c) #main (d) #star
32. 32.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) .logo (b) #note (c) .big (d) #logo
33. 33.🎯 Which element does the selector #logo style? (a) <p id="end"> (b) <p id="logo"> (c) <h1 class="big"> (d) <p class="logo">
34. 34.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) .red (b) #red (c) .box (d) #hero
35. 35.True or false: img is a class selector. (a) True (b) False
36. 36.True or false: body is an element selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <li class="red" id="end">Hello</li> (a) li (b) .box (c) .end (d) #red
38. 38.🎯 Which element does the selector #top style? (a) <div id="top"> (b) <span class="note"> (c) <div class="top"> (d) <div id="intro">
39. 39.🎯 Which element does the selector span style? (a) <h1 class="box"> (b) <p> (c) <span class="box"> (d) <h2 id="hero">
40. 40.True or false: .star is a class selector. (a) False (b) True

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