CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 73 · 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 element does the selector #top style? (a) <div id="intro"> (b) <div class="top"> (c) <div id="top"> (d) <span class="menu">
2. 2.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
3. 3.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span class="star">
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
7. 7.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="big" id="top">Hello</h2> (a) .top (b) li (c) h2 (d) #intro
9. 9.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <span id="intro"> (c) <span class="intro"> (d) <p class="star">
10. 10.🎯 Which element does the selector .box style? (a) <div id="box"> (b) <span class="menu"> (c) <div class="star"> (d) <div class="box">
11. 11.🎯 Which element does the selector div style? (a) <p class="note"> (b) <div class="note"> (c) <h1 id="main"> (d) <span>
12. 12.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
13. 13.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) h1 (b) #logo (c) p (d) .star
14. 14.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
15. 15.True or false: #top is an element selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <div class="star" id="top">Hello</div> (a) div (b) #star (c) .menu (d) .top
17. 17.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #note (b) .logo (c) .big (d) p
18. 18.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <h1 class="red"> (c) <h2> (d) <li class="red">
19. 19.🎯 Which element does the selector .red style? (a) <span class="star"> (b) <div class="red"> (c) <div id="red"> (d) <div class="box">
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) h2 (b) .red (c) .main (d) #logo
21. 21.True or false: p is a class selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li> (a) #red (b) .box (c) .top (d) li
23. 23.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 id="red"> (c) <h2 class="red"> (d) <li class="star">
24. 24.True or false: #logo is an id selector. (a) False (b) True
25. 25.🎯 Which element does the selector #top style? (a) <p class="big"> (b) <span class="top"> (c) <span id="top"> (d) <span id="intro">
26. 26.🎯 Which element does the selector li style? (a) <div> (b) <li class="box"> (c) <span class="box"> (d) <p id="top">
27. 27.🎯 Which element does the selector .big style? (a) <li id="big"> (b) <li class="red"> (c) <li class="big"> (d) <div class="box">
28. 28.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h2 class="box"> (c) <h1 id="top"> (d) <h1 id="intro">
29. 29.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
30. 30.True or false: .card is a class selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) .menu (b) h2 (c) #star (d) #logo
32. 32.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
33. 33.True or false: body is an element selector. (a) True (b) False
34. 34.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which element does the selector #logo style? (a) <h2 class="note"> (b) <h1 id="logo"> (c) <h1 id="end"> (d) <h1 class="logo">
36. 36.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
38. 38.True or false: #hero is an id selector. (a) True (b) False
39. 39.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) .menu (b) #menu (c) .end (d) #hero
40. 40.🎯 Which CSS selector matches this element?
    <li class="big" id="intro">Hello</li> (a) div (b) #big (c) #intro (d) .intro

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