CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 888 · 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 sign starts an id selector? (a) . (b) # (c) @ (d) &
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="big" id="intro">Hello</h2> (a) .red (b) #big (c) #main (d) h2
3. 3.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <span class="big"> (c) <h1 class="big"> (d) <p>
4. 4.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <span> (c) <p class="note"> (d) <div class="note">
5. 5.🎯 Which element does the selector li style? (a) <p id="hero"> (b) <li class="note"> (c) <div> (d) <span class="note">
6. 6.🎯 Which element does the selector .star style? (a) <h2 class="menu"> (b) <li class="note"> (c) <h2 class="star"> (d) <h2 id="star">
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="box" id="hero">Hello</h1> (a) .star (b) h1 (c) #top (d) #box
8. 8.🎯 Can many elements share the same class? (a) Yes (b) No
9. 9.🎯 Which sign starts a class selector? (a) . (b) & (c) # (d) @
10. 10.True or false: #logo is a class selector. (a) False (b) True
11. 11.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
14. 14.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <div id="top"> (c) <h2> (d) <h1 class="note">
15. 15.🎯 Which element does the selector #top style? (a) <span class="menu"> (b) <div id="intro"> (c) <div id="top"> (d) <div class="top">
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .note (b) .top (c) #menu (d) .menu
17. 17.True or false: li is an element selector. (a) True (b) False
18. 18.True or false: .big is an element selector. (a) False (b) True
19. 19.True or false: body is a class selector. (a) True (b) False
20. 20.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <h2 class="star"> (c) <h1> (d) <p class="star">
21. 21.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) #box (b) .box (c) .top (d) .star
23. 23.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 Which element does the selector #logo style? (a) <li id="logo"> (b) <li class="logo"> (c) <div class="box"> (d) <li id="end">
25. 25.🎯 Which element does the selector #end style? (a) <li id="end"> (b) <li id="hero"> (c) <li class="end"> (d) <div class="menu">
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .note (b) h2 (c) .intro (d) #intro
27. 27.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) .red (b) h1 (c) #top (d) #red
28. 28.True or false: #hero is an id selector. (a) True (b) False
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="box" id="intro">Hello</h2> (a) .star (b) .intro (c) .box (d) #box
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) .star (b) #logo (c) .logo (d) h2
31. 31.True or false: body is an element selector. (a) False (b) True
32. 32.🎯 Which element does the selector h1 style? (a) <h1 class="box"> (b) <li class="box"> (c) <h2> (d) <div id="logo">
33. 33.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="menu"> (c) <span id="end"> (d) <h2 class="menu">
34. 34.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) #end (b) #logo (c) .logo (d) div
36. 36.True or false: .star is an element selector. (a) True (b) False
37. 37.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="star"> (c) <h2 class="star"> (d) <span id="intro">
38. 38.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <p class="note"> (c) <li id="end"> (d) <h1>
39. 39.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <h1 class="red"> (c) <p class="note"> (d) <p class="big">
40. 40.🎯 Which element does the selector p style? (a) <h1> (b) <li id="logo"> (c) <p class="big"> (d) <h2 class="big">

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