CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 377 · 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.True or false: .big is a class selector. (a) True (b) False
2. 2.True or false: #hero is an id selector. (a) False (b) True
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="note" id="top">Hello</h2> (a) .top (b) .note (c) .big (d) #intro
4. 4.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
5. 5.True or false: .card is an element selector. (a) False (b) True
6. 6.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
7. 7.🎯 Which element does the selector div style? (a) <p class="star"> (b) <span> (c) <div class="star"> (d) <h1 id="main">
8. 8.True or false: .note is an element selector. (a) True (b) False
9. 9.🎯 Which element does the selector span style? (a) <span class="menu"> (b) <h1 class="menu"> (c) <h2 id="logo"> (d) <p>
10. 10.🎯 Which element does the selector li style? (a) <span class="star"> (b) <p id="hero"> (c) <div> (d) <li class="star">
11. 11.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <h2> (c) <div id="main"> (d) <h1 class="box">
12. 12.🎯 Can many elements share the same class? (a) Yes (b) No
13. 13.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
14. 14.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
15. 15.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <span id="logo"> (c) <p class="big"> (d) <span class="logo">
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) .star (b) h2 (c) #hero (d) .hero
17. 17.True or false: #main is a class selector. (a) True (b) False
18. 18.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
20. 20.True or false: #end is an element selector. (a) True (b) False
21. 21.🎯 Which element does the selector .star style? (a) <p id="star"> (b) <p class="star"> (c) <p class="menu"> (d) <h1 class="note">
22. 22.True or false: #logo is a class selector. (a) True (b) False
23. 23.🎯 Which element does the selector li style? (a) <div> (b) <span class="menu"> (c) <p id="intro"> (d) <li class="menu">
24. 24.🎯 Which element does the selector #main style? (a) <span class="big"> (b) <div id="logo"> (c) <div id="main"> (d) <div class="main">
25. 25.🎯 Which element does the selector .big style? (a) <h1 id="big"> (b) <h1 class="red"> (c) <h1 class="big"> (d) <h2 class="box">
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) .main (b) #logo (c) .big (d) .note
27. 27.🎯 Which element does the selector #intro style? (a) <p id="intro"> (b) <h1 class="red"> (c) <p class="intro"> (d) <p id="main">
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .hero (b) .menu (c) .star (d) #top
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) #menu (b) li (c) .logo (d) .menu
30. 30.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
31. 31.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="menu"> (c) <p class="menu"> (d) <li id="top">
32. 32.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) #star (b) div (c) .hero (d) .star
33. 33.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
34. 34.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .red (b) #big (c) .top (d) .big
36. 36.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) #top (b) .top (c) #red (d) #intro
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) .intro (b) #red (c) li (d) .red
39. 39.🎯 Which element does the selector .red style? (a) <span class="star"> (b) <div class="red"> (c) <div class="box"> (d) <div id="red">
40. 40.🎯 Which element does the selector #end style? (a) <span id="hero"> (b) <p class="big"> (c) <span class="end"> (d) <span id="end">

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