CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 200 · 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="big" id="main">Hello</p> (a) #logo (b) .main (c) #big (d) p
2. 2.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which element does the selector #intro style? (a) <div class="big"> (b) <li class="intro"> (c) <li id="intro"> (d) <li id="main">
4. 4.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 Which CSS selector matches this element?
   <span class="box" id="main">Hello</span> (a) span (b) #box (c) #logo (d) p
6. 6.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
7. 7.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
8. 8.True or false: .menu is a class selector. (a) False (b) True
9. 9.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
10. 10.True or false: img is an element selector. (a) True (b) False
11. 11.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="hero"> (c) <h1> (d) <p class="star">
12. 12.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1> (a) .top (b) h2 (c) #red (d) .red
13. 13.True or false: #logo is a class selector. (a) True (b) False
14. 14.True or false: .note is an id selector. (a) False (b) True
15. 15.True or false: #main is a class selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) .star (b) h2 (c) #box (d) h1
17. 17.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="menu"> (c) <div id="logo"> (d) <li class="menu">
18. 18.True or false: #top is an id selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #note (b) #end (c) .logo (d) .note
20. 20.🎯 Which element does the selector #intro style? (a) <p class="intro"> (b) <h1 class="big"> (c) <p id="main"> (d) <p id="intro">
21. 21.True or false: .note is an element selector. (a) True (b) False
22. 22.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <li> (c) <h2 class="note"> (d) <span id="top">
23. 23.True or false: #end is a class selector. (a) False (b) True
24. 24.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) span (b) .big (c) #top (d) #note
25. 25.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which element does the selector #intro style? (a) <div id="intro"> (b) <span class="menu"> (c) <div id="main"> (d) <div class="intro">
27. 27.🎯 Which element does the selector span style? (a) <h1 class="box"> (b) <p> (c) <h2 id="main"> (d) <span class="box">
28. 28.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <div id="main"> (c) <li class="big"> (d) <h2>
29. 29.🎯 Which element does the selector .menu style? (a) <p id="menu"> (b) <p class="menu"> (c) <h1 class="big"> (d) <p class="note">
30. 30.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 id="main"> (c) <h2 class="red"> (d) <h1 class="intro">
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) .big (b) #main (c) #note (d) .note
32. 32.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 5 (d) 2
34. 34.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <p id="logo"> (d) <h1 class="red">
35. 35.True or false: .star is an id selector. (a) True (b) False
36. 36.True or false: #logo is an element selector. (a) False (b) True
37. 37.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <p class="note"> (c) <li id="logo"> (d) <h1>
38. 38.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <div id="star"> (c) <div class="star"> (d) <span class="note">
39. 39.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <span class="note"> (c) <p> (d) <h1 class="note">
40. 40.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <h2 class="big"> (c) <span id="intro"> (d) <li>

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