CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 477 · 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?
   <li class="menu" id="main">Hello</li> (a) .menu (b) .note (c) #logo (d) .main
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="red" id="end">Hello</h1> (a) .box (b) .red (c) #hero (d) .end
3. 3.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
4. 4.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
5. 5.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
6. 6.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <h1 class="note"> (c) <span class="note"> (d) <p>
7. 7.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <h2 class="note"> (c) <span id="intro"> (d) <li>
8. 8.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
9. 9.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="big"> (c) <div class="red"> (d) <li class="note">
10. 10.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 Which element does the selector #end style? (a) <div id="hero"> (b) <span class="note"> (c) <div class="end"> (d) <div id="end">
12. 12.🎯 Which element does the selector p style? (a) <h1> (b) <p class="box"> (c) <li id="top"> (d) <h2 class="box">
13. 13.True or false: img is a class selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) .star (b) #top (c) h2 (d) h1
15. 15.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) #top (b) .hero (c) .box (d) #box
17. 17.🎯 Can many elements share the same class? (a) Yes (b) No
18. 18.True or false: h1 is a class selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) .box (b) .top (c) .red (d) #red
20. 20.True or false: #logo is an element selector. (a) True (b) False
21. 21.True or false: .note is an id selector. (a) True (b) False
22. 22.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="note"> (c) <span class="menu"> (d) <p class="big">
23. 23.🎯 Which element does the selector #hero style? (a) <div class="red"> (b) <li id="hero"> (c) <li id="top"> (d) <li class="hero">
24. 24.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) .intro (b) #main (c) #big (d) .big
25. 25.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
26. 26.True or false: #top is a class selector. (a) True (b) False
27. 27.True or false: .card is a class selector. (a) False (b) True
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) .end (b) #end (c) #hero (d) #note
29. 29.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
30. 30.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
31. 31.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <li class="menu"> (c) <div> (d) <p id="main">
32. 32.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which element does the selector li style? (a) <div> (b) <p id="top"> (c) <span class="box"> (d) <li class="box">
34. 34.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) #menu (b) #hero (c) .hero (d) .note
35. 35.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) #red (b) p (c) h1 (d) #top
36. 36.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="red"> (c) <h2 id="intro"> (d) <h2 id="main">
38. 38.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 class="intro"> (c) <h1 id="main"> (d) <h2 class="star">
39. 39.True or false: .big is an element selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) p (b) .menu (c) .top (d) #intro

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