CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 196 · 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="main">Hello</h2> (a) #star (b) #main (c) .main (d) li
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="note" id="hero">Hello</h1> (a) .hero (b) h2 (c) .big (d) #hero
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="big" id="top">Hello</h1> (a) .big (b) h2 (c) #intro (d) #big
4. 4.🎯 Which CSS selector matches this element?
   <h1 class="star" id="main">Hello</h1> (a) #main (b) h2 (c) #logo (d) .menu
5. 5.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="big"> (c) <div id="main"> (d) <h1 class="big">
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
9. 9.True or false: #main is a class selector. (a) False (b) True
10. 10.True or false: .note is a class selector. (a) False (b) True
11. 11.🎯 Which element does the selector #logo style? (a) <h2 id="end"> (b) <li class="star"> (c) <h2 class="logo"> (d) <h2 id="logo">
12. 12.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) p (b) .big (c) .note (d) .hero
14. 14.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
15. 15.True or false: #logo is an id selector. (a) True (b) False
16. 16.🎯 Which element does the selector .big style? (a) <p class="big"> (b) <h1 class="box"> (c) <p class="red"> (d) <p id="big">
17. 17.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
18. 18.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
19. 19.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <li> (c) <span id="top"> (d) <h2 class="big">
20. 20.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) #hero (b) .menu (c) p (d) .end
21. 21.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li class="star"> (c) <li id="box"> (d) <li class="box">
22. 22.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
23. 23.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .note (b) #menu (c) .intro (d) h1
26. 26.True or false: #top is an id selector. (a) False (b) True
27. 27.🎯 Which element does the selector .box style? (a) <h2 class="star"> (b) <h2 id="box"> (c) <li class="menu"> (d) <h2 class="box">
28. 28.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &
30. 30.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
31. 31.True or false: #main is an element selector. (a) False (b) True
32. 32.True or false: .card is a class selector. (a) False (b) True
33. 33.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 class="big"> (c) <h2 class="note"> (d) <h2 id="note">
34. 34.🎯 Which element does the selector div style? (a) <span> (b) <p class="red"> (c) <h1 id="top"> (d) <div class="red">
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) .big (b) .logo (c) #note (d) .note
36. 36.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h2 class="red"> (c) <h1 class="note"> (d) <h1 id="note">
38. 38.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) .menu (b) #logo (c) .main (d) #main
40. 40.True or false: li is a class selector. (a) True (b) False

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