CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 293 · 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) an element selector (b) an id selector (c) a class selector
2. 2.True or false: .big is a class selector. (a) False (b) True
3. 3.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
4. 4.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
5. 5.🎯 Which element does the selector #hero style? (a) <div class="hero"> (b) <div id="top"> (c) <div id="hero"> (d) <span class="red">
6. 6.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <span class="box"> (c) <div id="big"> (d) <div class="big">
7. 7.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span class="intro"> (c) <span id="main"> (d) <p class="red">
8. 8.🎯 Which CSS selector matches this element?
   <p class="star" id="hero">Hello</p> (a) #star (b) .menu (c) #hero (d) h1
9. 9.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <p id="main"> (c) <li class="menu"> (d) <div>
10. 10.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
11. 11.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p class="big"> (c) <p class="note"> (d) <p id="note">
12. 12.True or false: .card is an id selector. (a) False (b) True
13. 13.🎯 Can many elements share the same class? (a) No (b) Yes
14. 14.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <span class="big"> (d) <h2 id="logo">
15. 15.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <p class="note"> (c) <span class="star"> (d) <span class="menu">
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) h2 (b) #intro (c) .top (d) li
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) .big (b) .red (c) #big (d) li
18. 18.🎯 Which element does the selector div style? (a) <div class="red"> (b) <h1 id="logo"> (c) <span> (d) <p class="red">
19. 19.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
20. 20.🎯 Which element does the selector .box style? (a) <span class="star"> (b) <p class="menu"> (c) <span id="box"> (d) <span class="box">
21. 21.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div id="note"> (c) <div class="big"> (d) <div class="note">
22. 22.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div class="box"> (c) <div id="box"> (d) <div class="star">
23. 23.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) p (b) .note (c) #menu (d) .main
24. 24.🎯 Which CSS selector matches this element?
    <div class="big" id="top">Hello</div> (a) #big (b) #intro (c) .red (d) #top
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) h2 (b) .menu (c) #intro (d) .top
26. 26.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 Which element does the selector .menu style? (a) <div id="menu"> (b) <div class="note"> (c) <div class="menu"> (d) <span class="big">
28. 28.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) #note (b) .hero (c) h1 (d) h2
30. 30.True or false: .note is an id selector. (a) False (b) True
31. 31.True or false: .card is a class selector. (a) False (b) True
32. 32.True or false: #top is an element selector. (a) False (b) True
33. 33.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which element does the selector .red style? (a) <p class="star"> (b) <span class="red"> (c) <span id="red"> (d) <span class="box">
35. 35.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #menu (b) #top (c) .top (d) h2
36. 36.🎯 Which element does the selector .note style? (a) <h2 class="note"> (b) <h2 id="note"> (c) <h2 class="big"> (d) <li class="red">
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1> (a) .box (b) #intro (c) .top (d) h1
38. 38.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <h1 class="big"> (d) <p id="logo">
39. 39.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) #intro (b) .menu (c) #star (d) .intro
40. 40.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) .big (b) #note (c) .main (d) #main

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