CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 500 · 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?
   <h2 class="star" id="top">Hello</h2> (a) #star (b) h2 (c) .top (d) .menu
2. 2.True or false: .menu is an element selector. (a) True (b) False
3. 3.True or false: p is an element selector. (a) True (b) False
4. 4.🎯 Which element does the selector .box style? (a) <h2 class="star"> (b) <h2 class="box"> (c) <li class="menu"> (d) <h2 id="box">
5. 5.🎯 Which CSS selector matches this element?
   <p class="red" id="hero">Hello</p> (a) #top (b) .box (c) h1 (d) .red
6. 6.True or false: body is an element selector. (a) False (b) True
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="logo">Hello</h1> (a) #end (b) .note (c) #menu (d) h1
8. 8.🎯 Which element does the selector li style? (a) <li class="note"> (b) <span class="note"> (c) <div> (d) <p id="top">
9. 9.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h2 class="note"> (c) <p class="note"> (d) <h1>
10. 10.True or false: body is a class selector. (a) True (b) False
11. 11.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 Which CSS selector matches this element?
    <li class="big" id="intro">Hello</li> (a) .red (b) #big (c) .intro (d) li
13. 13.True or false: #top is a class selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) li (b) #box (c) .top (d) .box
15. 15.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) .note (b) #top (c) .hero (d) #hero
17. 17.True or false: #end is an element selector. (a) False (b) True
18. 18.True or false: #logo is an element selector. (a) False (b) True
19. 19.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <div class="big"> (c) <div id="big"> (d) <span class="box">
20. 20.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
21. 21.True or false: .big is an id selector. (a) True (b) False
22. 22.True or false: .big is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) span (b) #top (c) #intro (d) #box
24. 24.🎯 Which element does the selector li style? (a) <span class="red"> (b) <p id="hero"> (c) <li class="red"> (d) <div>
25. 25.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <li class="box"> (c) <h2> (d) <h1 class="box">
26. 26.True or false: .star is a class selector. (a) True (b) False
27. 27.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <span id="hero"> (c) <li> (d) <h2 class="note">
28. 28.True or false: .card is a class selector. (a) True (b) False
29. 29.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
31. 31.🎯 Which element does the selector #hero style? (a) <h2 class="note"> (b) <h1 class="hero"> (c) <h1 id="hero"> (d) <h1 id="top">
32. 32.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
33. 33.True or false: #top is an id selector. (a) True (b) False
34. 34.True or false: h1 is an id selector. (a) False (b) True
35. 35.🎯 Which element does the selector #end style? (a) <p id="end"> (b) <h1 class="red"> (c) <p id="hero"> (d) <p class="end">
36. 36.🎯 Which element does the selector .menu style? (a) <div id="menu"> (b) <div class="menu"> (c) <div class="note"> (d) <span class="big">
37. 37.🎯 Can many elements share the same class? (a) No (b) Yes
38. 38.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) #big (c) .red (d) #hero
39. 39.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) h1 (b) .red (c) #main (d) #big
40. 40.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) .end (b) .menu (c) .star (d) #star

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