CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 636 · 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.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
2. 2.True or false: body is a class selector. (a) True (b) False
3. 3.🎯 Which element does the selector div style? (a) <div class="big"> (b) <span> (c) <h1 id="end"> (d) <p class="big">
4. 4.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p class="box"> (c) <p class="star"> (d) <p id="box">
5. 5.True or false: p is a class selector. (a) False (b) True
6. 6.🎯 Which CSS selector matches this element?
   <li class="red" id="top">Hello</li> (a) .red (b) .top (c) .box (d) #red
7. 7.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
9. 9.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="intro"> (c) <div class="big"> (d) <h2 class="big">
10. 10.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
11. 11.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) .box (b) .red (c) h1 (d) #red
12. 12.🎯 Which CSS selector matches this element?
    <div class="note" id="end">Hello</div> (a) .big (b) span (c) #note (d) #end
13. 13.True or false: #main is an id selector. (a) False (b) True
14. 14.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <p class="box"> (c) <span id="top"> (d) <span class="top">
15. 15.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) .red (b) span (c) #top (d) p
16. 16.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .note (b) #intro (c) .big (d) #note
17. 17.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
18. 18.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) span (b) #box (c) p (d) .star
19. 19.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) .big (b) p (c) #end (d) .logo
20. 20.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
21. 21.True or false: #hero is an id selector. (a) True (b) False
22. 22.True or false: #top is an element selector. (a) False (b) True
23. 23.True or false: .card is an id selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) #red (b) .top (c) div (d) span
25. 25.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
26. 26.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
27. 27.True or false: .big is a class selector. (a) False (b) True
28. 28.True or false: li is an element selector. (a) False (b) True
29. 29.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
30. 30.🎯 Can many elements share the same class? (a) Yes (b) No
31. 31.🎯 Which element does the selector .note style? (a) <p class="red"> (b) <span id="note"> (c) <span class="note"> (d) <span class="big">
32. 32.🎯 Which element does the selector h2 style? (a) <span id="hero"> (b) <h2 class="box"> (c) <div class="box"> (d) <li>
33. 33.True or false: .card is an element selector. (a) True (b) False
34. 34.🎯 Which element does the selector #main style? (a) <p class="main"> (b) <p id="logo"> (c) <h1 class="menu"> (d) <p id="main">
35. 35.True or false: body is an element selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) div (b) .big (c) #big (d) .red
37. 37.🎯 Which element does the selector .box style? (a) <h1 class="star"> (b) <h1 id="box"> (c) <h2 class="menu"> (d) <h1 class="box">
38. 38.🎯 Which element does the selector #main style? (a) <li class="box"> (b) <h2 id="main"> (c) <h2 class="main"> (d) <h2 id="logo">
39. 39.🎯 Which element does the selector #intro style? (a) <h2 class="box"> (b) <h1 id="main"> (c) <h1 class="intro"> (d) <h1 id="intro">
40. 40.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector

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