CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 303 · 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?
   <p class="star" id="logo">Hello</p> (a) #logo (b) h1 (c) #star (d) #end
2. 2.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
3. 3.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
4. 4.True or false: body is an element selector. (a) True (b) False
5. 5.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
6. 6.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h1> (c) <h2 class="big"> (d) <li id="top">
7. 7.True or false: #end is an id selector. (a) False (b) True
8. 8.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="star"> (c) <li class="star"> (d) <div id="top">
9. 9.🎯 Which element does the selector p style? (a) <h1> (b) <p class="menu"> (c) <li id="main"> (d) <h2 class="menu">
10. 10.🎯 Which element does the selector .big style? (a) <h2 id="big"> (b) <h2 class="red"> (c) <h2 class="big"> (d) <li class="box">
11. 11.🎯 Which element does the selector #top style? (a) <li id="intro"> (b) <li id="top"> (c) <div class="menu"> (d) <li class="top">
12. 12.🎯 Which element does the selector h2 style? (a) <h2 class="box"> (b) <li> (c) <div class="box"> (d) <span id="end">
13. 13.🎯 Which element does the selector #hero style? (a) <div class="red"> (b) <li class="hero"> (c) <li id="top"> (d) <li id="hero">
14. 14.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #end (b) h1 (c) .red (d) .box
15. 15.🎯 Which element does the selector h2 style? (a) <h2 class="menu"> (b) <div class="menu"> (c) <li> (d) <span id="end">
16. 16.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) h1 (b) p (c) #end (d) #note
17. 17.True or false: p is an element selector. (a) True (b) False
18. 18.True or false: li is an id selector. (a) False (b) True
19. 19.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
20. 20.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
21. 21.True or false: img is a class selector. (a) False (b) True
22. 22.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <div id="star"> (c) <div class="star"> (d) <span class="note">
23. 23.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h2 class="big"> (c) <h1 class="menu"> (d) <h1 id="menu">
24. 24.True or false: li is an element selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .intro (b) #main (c) #red (d) div
26. 26.🎯 Which element does the selector #main style? (a) <h2 id="main"> (b) <h2 id="logo"> (c) <h2 class="main"> (d) <li class="note">
27. 27.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) .logo (b) #logo (c) .box (d) #red
28. 28.True or false: img is an element selector. (a) False (b) True
29. 29.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 Which element does the selector #end style? (a) <span class="end"> (b) <span id="hero"> (c) <p class="red"> (d) <span id="end">
31. 31.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <h1 class="note"> (c) <p> (d) <span class="note">
32. 32.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
33. 33.True or false: #main is an id selector. (a) False (b) True
34. 34.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <div id="logo"> (c) <div class="logo"> (d) <span class="red">
35. 35.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <h1> (c) <li id="end"> (d) <p class="star">
36. 36.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) #box (b) h1 (c) p (d) .star
37. 37.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .big (b) .main (c) #logo (d) .note
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #top (b) #note (c) .top (d) #intro
39. 39.🎯 Can many elements share the same class? (a) Yes (b) No
40. 40.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) .note (b) #menu (c) .menu (d) .top

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