CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 924 · 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 li? (a) an element selector (b) a class selector (c) an id selector
2. 2.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
3. 3.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <span> (c) <div class="big"> (d) <p class="big">
4. 4.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="intro"> (c) <p class="star"> (d) <h1>
5. 5.🎯 Which CSS selector matches this element?
   <h2 class="box" id="hero">Hello</h2> (a) .star (b) #top (c) li (d) .box
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="big" id="end">Hello</h2> (a) #hero (b) #big (c) .end (d) .big
7. 7.True or false: .card is an id selector. (a) True (b) False
8. 8.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
9. 9.🎯 Which CSS selector matches this element?
   <span class="big" id="top">Hello</span> (a) span (b) .red (c) #intro (d) #big
10. 10.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
11. 11.🎯 Which element does the selector h2 style? (a) <span id="hero"> (b) <li> (c) <div class="menu"> (d) <h2 class="menu">
12. 12.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which element does the selector .big style? (a) <li class="red"> (b) <div class="box"> (c) <li class="big"> (d) <li id="big">
14. 14.🎯 Which element does the selector li style? (a) <div> (b) <span class="big"> (c) <li class="big"> (d) <p id="main">
15. 15.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .note (b) #note (c) h1 (d) #intro
16. 16.🎯 Which element does the selector .box style? (a) <p class="box"> (b) <h1 class="menu"> (c) <p class="star"> (d) <p id="box">
17. 17.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) #end (b) .box (c) #logo (d) .logo
18. 18.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 class="big"> (c) <h2 id="note"> (d) <h2 class="note">
19. 19.🎯 Which element does the selector .red style? (a) <p id="red"> (b) <p class="box"> (c) <h1 class="star"> (d) <p class="red">
20. 20.🎯 Which element does the selector .box style? (a) <div class="box"> (b) <span class="menu"> (c) <div class="star"> (d) <div id="box">
21. 21.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) h2 (b) .box (c) .main (d) #red
22. 22.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span class="note"> (c) <span id="note"> (d) <p class="red">
23. 23.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
24. 24.True or false: li is an element selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #logo (b) .red (c) #big (d) p
26. 26.🎯 Which element does the selector #hero style? (a) <div id="hero"> (b) <span class="box"> (c) <div id="top"> (d) <div class="hero">
27. 27.True or false: #end is an id selector. (a) False (b) True
28. 28.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
30. 30.True or false: #end is a class selector. (a) False (b) True
31. 31.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
32. 32.True or false: #logo is an element selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) .menu (b) h1 (c) .logo (d) .star
34. 34.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
35. 35.🎯 Which element does the selector span style? (a) <h1 class="red"> (b) <span class="red"> (c) <p> (d) <h2 id="hero">
36. 36.🎯 Can many elements share the same class? (a) No (b) Yes
37. 37.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) #logo (b) #box (c) .star (d) li
38. 38.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #top (b) .red (c) h1 (d) .big
39. 39.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
40. 40.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector

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