CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 318 · 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?
   <span class="red" id="top">Hello</span> (a) #intro (b) #top (c) .box (d) p
2. 2.True or false: .note is an id selector. (a) False (b) True
3. 3.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which element does the selector li style? (a) <div> (b) <li class="note"> (c) <p id="end"> (d) <span class="note">
5. 5.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &
6. 6.True or false: li is an element selector. (a) False (b) True
7. 7.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <span class="star"> (c) <p class="note"> (d) <span id="star">
8. 8.True or false: .card is an id selector. (a) True (b) False
9. 9.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .big (b) #top (c) .note (d) #note
11. 11.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) .note (b) .logo (c) #logo (d) #menu
12. 12.🎯 Which element does the selector .big style? (a) <div class="box"> (b) <li class="red"> (c) <li id="big"> (d) <li class="big">
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) #menu (b) .intro (c) #intro (d) li
14. 14.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 5 (d) 2
15. 15.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) h1 (b) .hero (c) p (d) .note
16. 16.🎯 Which element does the selector .menu style? (a) <h1 id="menu"> (b) <h2 class="big"> (c) <h1 class="menu"> (d) <h1 class="note">
17. 17.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="big"> (d) <div class="red">
18. 18.True or false: .card is a class selector. (a) False (b) True
19. 19.🎯 Which element does the selector #hero style? (a) <h2 class="big"> (b) <h1 id="top"> (c) <h1 id="hero"> (d) <h1 class="hero">
20. 20.True or false: .menu is a class selector. (a) False (b) True
21. 21.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 class="note"> (c) <h2 class="red"> (d) <h1 id="note">
22. 22.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <h1> (c) <li id="end"> (d) <p class="star">
23. 23.True or false: #logo is a class selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .hero (b) .big (c) #hero (d) div
25. 25.🎯 Which element does the selector p style? (a) <li id="end"> (b) <h1> (c) <h2 class="note"> (d) <p class="note">
26. 26.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <p class="box"> (c) <div class="box"> (d) <span>
27. 27.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
28. 28.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
29. 29.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
30. 30.True or false: img is an element selector. (a) True (b) False
31. 31.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <li class="big"> (c) <div id="end"> (d) <h2>
32. 32.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #logo (b) .main (c) .big (d) .note
34. 34.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) #box (b) #top (c) div (d) .star
36. 36.🎯 Which element does the selector li style? (a) <div> (b) <li class="red"> (c) <p id="logo"> (d) <span class="red">
37. 37.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .star (b) li (c) .top (d) .menu
39. 39.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <h2 class="red"> (d) <li id="hero">
40. 40.True or false: #hero is an element selector. (a) False (b) True

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