CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 292 · 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: #hero is an id selector. (a) False (b) True
2. 2.True or false: .big is an id selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="note" id="intro">Hello</h1> (a) #note (b) #main (c) h1 (d) .big
4. 4.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
5. 5.True or false: .note is an element selector. (a) False (b) True
6. 6.🎯 Which element does the selector #hero style? (a) <p class="hero"> (b) <h1 class="note"> (c) <p id="hero"> (d) <p id="top">
7. 7.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="note" id="intro">Hello</h2> (a) #note (b) .intro (c) h2 (d) #main
9. 9.🎯 Which CSS selector matches this element?
   <h1 class="star" id="logo">Hello</h1> (a) .logo (b) h2 (c) .star (d) #star
10. 10.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
11. 11.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
12. 12.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <span> (c) <div class="menu"> (d) <h1 id="top">
14. 14.True or false: .big is an element selector. (a) True (b) False
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) .main (b) h2 (c) #logo (d) #main
16. 16.🎯 Can many elements share the same class? (a) No (b) Yes
17. 17.True or false: .card is an id selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) .star (b) .end (c) h1 (d) #star
19. 19.🎯 Which element does the selector span style? (a) <h2 id="intro"> (b) <h1 class="red"> (c) <p> (d) <span class="red">
20. 20.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
21. 21.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
22. 22.True or false: #main is an id selector. (a) True (b) False
23. 23.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
24. 24.True or false: li is a class selector. (a) False (b) True
25. 25.🎯 Which element does the selector div style? (a) <h1 id="main"> (b) <span> (c) <p class="big"> (d) <div class="big">
26. 26.True or false: .star is a class selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) span (b) p (c) #star (d) #intro
28. 28.True or false: body is a class selector. (a) True (b) False
29. 29.True or false: #logo is an id selector. (a) False (b) True
30. 30.🎯 Which element does the selector #end style? (a) <p id="end"> (b) <p id="hero"> (c) <p class="end"> (d) <h1 class="box">
31. 31.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 Which element does the selector li style? (a) <li class="red"> (b) <p id="end"> (c) <div> (d) <span class="red">
33. 33.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) .star (b) #top (c) #intro (d) div
34. 34.True or false: #end is a class selector. (a) False (b) True
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="hero">Hello</div> (a) #note (b) .hero (c) #top (d) div
36. 36.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <div id="big"> (c) <div class="big"> (d) <span class="box">
37. 37.🎯 Which element does the selector h2 style? (a) <h2 class="box"> (b) <span id="hero"> (c) <li> (d) <div class="box">
38. 38.True or false: p is a class selector. (a) False (b) True
39. 39.🎯 Which element does the selector li style? (a) <div> (b) <li class="big"> (c) <p id="intro"> (d) <span class="big">
40. 40.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector

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