CSS Worksheet: Selectors Class and Id

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

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