CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 935 · 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 .box style? (a) <span id="box"> (b) <p class="menu"> (c) <span class="box"> (d) <span class="star">
2. 2.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
3. 3.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
4. 4.True or false: .big is an element selector. (a) False (b) True
5. 5.True or false: .star is a class selector. (a) False (b) True
6. 6.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
7. 7.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="logo"> (c) <h1 class="big"> (d) <span class="big">
8. 8.🎯 Which element does the selector p style? (a) <h1> (b) <p class="big"> (c) <h2 class="big"> (d) <li id="intro">
9. 9.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <div class="note"> (c) <h2 class="note"> (d) <li>
10. 10.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
11. 11.True or false: body is an element selector. (a) True (b) False
12. 12.True or false: .note is a class selector. (a) False (b) True
13. 13.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) #red (b) .box (c) .intro (d) #intro
14. 14.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) .star (b) .logo (c) #end (d) #star
15. 15.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
16. 16.True or false: li is an element selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) .intro (b) .big (c) #intro (d) p
18. 18.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
19. 19.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <div class="star"> (c) <li class="red"> (d) <li class="box">
20. 20.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .intro (b) span (c) div (d) #main
21. 21.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
22. 22.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <li class="big"> (c) <h2 class="menu"> (d) <h2 class="note">
23. 23.True or false: .menu is a class selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #intro (b) .red (c) .box (d) p
25. 25.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <p class="box"> (c) <h1> (d) <h2 class="box">
26. 26.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
27. 27.🎯 Which element does the selector .red style? (a) <h1 id="red"> (b) <h1 class="red"> (c) <h2 class="star"> (d) <h1 class="box">
28. 28.🎯 Which element does the selector .note style? (a) <li class="big"> (b) <div class="red"> (c) <li id="note"> (d) <li class="note">
29. 29.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <h1 class="red"> (c) <p class="note"> (d) <p class="big">
30. 30.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) #top (b) div (c) #box (d) .star
31. 31.🎯 Can many elements share the same class? (a) Yes (b) No
32. 32.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
33. 33.🎯 Which element does the selector p style? (a) <p class="note"> (b) <h1> (c) <h2 class="note"> (d) <li id="end">
34. 34.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) #big (b) #top (c) p (d) span
35. 35.True or false: img is an element selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) p (b) #box (c) h1 (d) .star
37. 37.True or false: .big is a class selector. (a) False (b) True
38. 38.True or false: #top is an id selector. (a) False (b) True
39. 39.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
40. 40.True or false: #logo is an element selector. (a) True (b) False

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