CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 147 · 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?
   <span class="red" id="logo">Hello</span> (a) p (b) #logo (c) .box (d) #end
2. 2.🎯 Which element does the selector p style? (a) <p class="note"> (b) <h1> (c) <h2 class="note"> (d) <li id="intro">
3. 3.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <h1 class="red"> (c) <p class="big"> (d) <p class="note">
4. 4.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
5. 5.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
6. 6.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
7. 7.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
8. 8.🎯 Which element does the selector .note style? (a) <h1 class="note"> (b) <h1 class="big"> (c) <h1 id="note"> (d) <h2 class="red">
9. 9.True or false: #hero is an id selector. (a) False (b) True
10. 10.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
11. 11.True or false: li is an element selector. (a) False (b) True
12. 12.🎯 Which element does the selector #intro style? (a) <li id="main"> (b) <li class="intro"> (c) <div class="star"> (d) <li id="intro">
13. 13.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) p (b) .top (c) .menu (d) #star
15. 15.True or false: .card is an id selector. (a) False (b) True
16. 16.True or false: .menu is a class selector. (a) False (b) True
17. 17.True or false: .note is a class selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #main (b) .note (c) #menu (d) .menu
19. 19.True or false: body is an element selector. (a) False (b) True
20. 20.True or false: .star is a class selector. (a) True (b) False
21. 21.🎯 Which CSS selector matches this element?
    <span class="red" id="end">Hello</span> (a) #red (b) p (c) .box (d) .red
22. 22.True or false: #main is an id selector. (a) False (b) True
23. 23.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 Which element does the selector h2 style? (a) <h2 class="note"> (b) <div class="note"> (c) <span id="main"> (d) <li>
25. 25.True or false: .card is a class selector. (a) False (b) True
26. 26.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <li id="top"> (c) <li id="intro"> (d) <div class="note">
27. 27.True or false: #hero is a class selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) h1 (b) .end (c) #hero (d) h2
29. 29.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <div id="end"> (c) <h2> (d) <h1 class="red">
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) .end (b) #hero (c) li (d) h2
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) #intro (b) .top (c) #top (d) li
32. 32.True or false: .big is a class selector. (a) True (b) False
33. 33.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h1 id="hero"> (c) <h1 id="end"> (d) <h2 class="red">
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #big (b) .red (c) .end (d) #end
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) h1 (b) .menu (c) #star (d) .top
36. 36.🎯 Which element does the selector #main style? (a) <h2 class="main"> (b) <h2 id="main"> (c) <li class="menu"> (d) <h2 id="logo">
37. 37.🎯 Can many elements share the same class? (a) Yes (b) No
38. 38.🎯 Which element does the selector .box style? (a) <span id="box"> (b) <p class="menu"> (c) <span class="star"> (d) <span class="box">
39. 39.🎯 Which element does the selector .box style? (a) <li class="box"> (b) <li class="star"> (c) <div class="menu"> (d) <li id="box">
40. 40.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 class="intro"> (c) <h1 id="main"> (d) <h2 class="big">

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