CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 488 · 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: h1 is an element selector. (a) False (b) True
2. 2.🎯 Can many elements share the same class? (a) No (b) Yes
3. 3.🎯 Which element does the selector .box style? (a) <div class="menu"> (b) <li class="box"> (c) <li class="star"> (d) <li id="box">
4. 4.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
5. 5.True or false: .card is a class selector. (a) True (b) False
6. 6.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
7. 7.🎯 Which element does the selector #logo style? (a) <h2 id="end"> (b) <h2 class="logo"> (c) <li class="red"> (d) <h2 id="logo">
8. 8.🎯 Which CSS selector matches this element?
   <div class="note" id="logo">Hello</div> (a) span (b) #end (c) #note (d) div
9. 9.True or false: .star is an element selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <div class="big" id="main">Hello</div> (a) #logo (b) span (c) .big (d) .red
11. 11.True or false: .note is a class selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .box (b) #main (c) span (d) #intro
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) #main (b) li (c) .menu (d) .star
14. 14.True or false: .note is an id selector. (a) False (b) True
15. 15.🎯 Which element does the selector #top style? (a) <h2 class="top"> (b) <h2 id="top"> (c) <h2 id="intro"> (d) <li class="big">
16. 16.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
17. 17.True or false: img is a class selector. (a) False (b) True
18. 18.True or false: .card is an id selector. (a) False (b) True
19. 19.🎯 Which element does the selector .box style? (a) <h1 class="box"> (b) <h2 class="menu"> (c) <h1 class="star"> (d) <h1 id="box">
20. 20.True or false: body is an element selector. (a) False (b) True
21. 21.🎯 Which element does the selector li style? (a) <div> (b) <li class="box"> (c) <p id="main"> (d) <span class="box">
22. 22.🎯 Which sign starts an id selector? (a) & (b) # (c) . (d) @
23. 23.🎯 Which element does the selector #end style? (a) <h2 class="note"> (b) <h1 class="end"> (c) <h1 id="end"> (d) <h1 id="hero">
24. 24.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
25. 25.True or false: .menu is an element selector. (a) False (b) True
26. 26.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
27. 27.🎯 Which element does the selector div style? (a) <p class="note"> (b) <span> (c) <h1 id="main"> (d) <div class="note">
28. 28.🎯 Which CSS selector matches this element?
    <div class="menu" id="intro">Hello</div> (a) #main (b) #menu (c) span (d) div
29. 29.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) #intro (b) p (c) span (d) .top
30. 30.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) .hero (b) #top (c) .star (d) p
31. 31.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
33. 33.🎯 What kind of selector is .note? (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 class="box"> (d) <span id="red">
35. 35.🎯 Which element does the selector li style? (a) <div> (b) <p id="logo"> (c) <span class="big"> (d) <li class="big">
36. 36.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <h2 class="star"> (d) <p class="star">
37. 37.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <h2 class="big"> (c) <span id="intro"> (d) <li>
38. 38.🎯 Which element does the selector #end style? (a) <div class="menu"> (b) <li id="end"> (c) <li id="hero"> (d) <li class="end">
39. 39.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) p (b) #box (c) #hero (d) h1
40. 40.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) #main (b) #menu (c) #logo (d) .note

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