CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 592 · 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 .card? (a) a class selector (b) an id selector (c) an element selector
2. 2.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
4. 4.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="box" id="logo">Hello</h1> (a) #logo (b) h2 (c) .logo (d) .star
8. 8.True or false: body is a class selector. (a) False (b) True
9. 9.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
10. 10.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) #hero (b) .note (c) .big (d) #note
12. 12.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
13. 13.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
14. 14.True or false: .big is an element selector. (a) True (b) False
15. 15.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #
16. 16.True or false: .menu is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <div class="note" id="hero">Hello</div> (a) .hero (b) span (c) #note (d) .note
18. 18.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .top (b) #top (c) p (d) #menu
19. 19.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
20. 20.True or false: h1 is a class selector. (a) True (b) False
21. 21.🎯 Which element does the selector span style? (a) <h1 class="note"> (b) <h2 id="top"> (c) <p> (d) <span class="note">
22. 22.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .big (b) #logo (c) #note (d) .note
23. 23.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) #hero (b) div (c) .note (d) .hero
24. 24.True or false: .star is a class selector. (a) False (b) True
25. 25.🎯 Which element does the selector #main style? (a) <h1 id="main"> (b) <h1 class="main"> (c) <h2 class="big"> (d) <h1 id="logo">
26. 26.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <span> (c) <div class="box"> (d) <p class="box">
27. 27.True or false: img is an element selector. (a) False (b) True
28. 28.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
29. 29.🎯 Which element does the selector h2 style? (a) <span id="main"> (b) <div class="menu"> (c) <h2 class="menu"> (d) <li>
30. 30.True or false: .menu is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 id="big"> (c) <h1 class="big"> (d) <h1 class="red">
32. 32.True or false: h1 is an id selector. (a) True (b) False
33. 33.🎯 Which element does the selector #intro style? (a) <h2 id="intro"> (b) <li class="big"> (c) <h2 id="main"> (d) <h2 class="intro">
34. 34.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
35. 35.🎯 Which element does the selector #intro style? (a) <p class="intro"> (b) <p id="main"> (c) <h1 class="note"> (d) <p id="intro">
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) .note (b) li (c) .logo (d) .big
37. 37.🎯 Which element does the selector h1 style? (a) <li class="menu"> (b) <h2> (c) <h1 class="menu"> (d) <div id="end">
38. 38.True or false: li is an element selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) .menu (b) li (c) #intro (d) #star
40. 40.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <div class="note"> (c) <li id="intro"> (d) <li id="top">

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