CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 97 · 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?
   <div class="menu" id="main">Hello</div> (a) #menu (b) .main (c) .note (d) .menu
2. 2.🎯 Can many elements share the same class? (a) No (b) Yes
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="star" id="logo">Hello</h2> (a) #star (b) h2 (c) li (d) .menu
4. 4.🎯 Which element does the selector #logo style? (a) <h1 class="logo"> (b) <h1 id="logo"> (c) <h1 id="end"> (d) <h2 class="star">
5. 5.🎯 Which element does the selector h2 style? (a) <h2 class="box"> (b) <div class="box"> (c) <span id="top"> (d) <li>
6. 6.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
7. 7.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
8. 8.True or false: .big is an id selector. (a) True (b) False
9. 9.🎯 Which element does the selector li style? (a) <p id="logo"> (b) <span class="big"> (c) <li class="big"> (d) <div>
10. 10.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="main"> (c) <li id="intro"> (d) <div class="star">
11. 11.True or false: #hero is an element selector. (a) True (b) False
12. 12.True or false: #logo is an element selector. (a) True (b) False
13. 13.True or false: body is a class selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) .red (b) #big (c) p (d) h1
15. 15.True or false: #main is an id selector. (a) True (b) False
16. 16.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
17. 17.True or false: .card is an element selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) #top (b) .top (c) #box (d) #intro
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) li (b) #big (c) .big (d) .logo
20. 20.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) #box (b) #top (c) h1 (d) .star
21. 21.🎯 Which element does the selector h1 style? (a) <div id="main"> (b) <h1 class="big"> (c) <li class="big"> (d) <h2>
22. 22.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <p class="box"> (d) <span class="big">
23. 23.True or false: .menu is a class selector. (a) False (b) True
24. 24.True or false: .note is an element selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) p (b) .red (c) #top (d) #big
26. 26.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) #big (b) #top (c) span (d) .red
27. 27.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <p class="star"> (d) <h2 class="star">
28. 28.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) .star (b) h1 (c) #box (d) .box
29. 29.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) #end (b) .box (c) .star (d) #box
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) #logo (b) #box (c) .logo (d) h2
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) h2 (b) #star (c) .star (d) #main
32. 32.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <span class="box"> (c) <div id="big"> (d) <div class="big">
33. 33.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
34. 34.🎯 Which element does the selector .menu style? (a) <h1 class="menu"> (b) <h2 class="big"> (c) <h1 id="menu"> (d) <h1 class="note">
35. 35.True or false: p is an id selector. (a) True (b) False
36. 36.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) div (b) #intro (c) .intro (d) #star
38. 38.True or false: li is an element selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) .note (b) #end (c) #menu (d) .end
40. 40.True or false: h1 is an element selector. (a) True (b) False

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