CSS Worksheet: Selectors Class and Id

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

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