CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 727 · 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 #top style? (a) <p class="box"> (b) <span id="intro"> (c) <span id="top"> (d) <span class="top">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="box" id="logo">Hello</h2> (a) .box (b) #end (c) #box (d) .star
3. 3.🎯 Which CSS selector matches this element?
   <h1 class="red" id="intro">Hello</h1> (a) #intro (b) .intro (c) #red (d) h2
4. 4.🎯 Which CSS selector matches this element?
   <h2 class="big" id="main">Hello</h2> (a) li (b) .red (c) .big (d) .main
5. 5.True or false: li is an element selector. (a) False (b) True
6. 6.True or false: #main is an id selector. (a) False (b) True
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
8. 8.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <div class="red"> (c) <li class="big"> (d) <li class="note">
9. 9.True or false: #logo is an element selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) h1 (b) .note (c) .big (d) #note
11. 11.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) #top (b) #big (c) h2 (d) #hero
14. 14.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
15. 15.🎯 Can many elements share the same class? (a) No (b) Yes
16. 16.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .big (b) .main (c) #logo (d) #main
17. 17.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
18. 18.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) div (b) .logo (c) #red (d) li
19. 19.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
20. 20.True or false: body is an element selector. (a) False (b) True
21. 21.True or false: p is a class selector. (a) False (b) True
22. 22.🎯 Which element does the selector li style? (a) <p id="end"> (b) <span class="note"> (c) <li class="note"> (d) <div>
23. 23.🎯 Which element does the selector h1 style? (a) <h1 class="menu"> (b) <h2> (c) <div id="intro"> (d) <li class="menu">
24. 24.True or false: li is a class selector. (a) False (b) True
25. 25.True or false: #top is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) p (b) #box (c) #main (d) .intro
27. 27.🎯 Which element does the selector .red style? (a) <span id="red"> (b) <span class="box"> (c) <p class="star"> (d) <span class="red">
28. 28.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
29. 29.True or false: img is an element selector. (a) True (b) False
30. 30.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h2 class="red"> (c) <p class="red"> (d) <h1>
31. 31.🎯 Which element does the selector .menu style? (a) <div id="menu"> (b) <div class="note"> (c) <span class="big"> (d) <div class="menu">
32. 32.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) #big (b) #logo (c) div (d) .logo
33. 33.🎯 Which CSS selector matches this element?
    <span class="big" id="logo">Hello</span> (a) #big (b) .red (c) #logo (d) #end
34. 34.True or false: .big is an element selector. (a) False (b) True
35. 35.True or false: .card is an id selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) #intro (b) span (c) .star (d) p
37. 37.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) #note (b) #intro (c) #main (d) .intro
38. 38.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #big (b) .red (c) div (d) li
39. 39.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) #top (b) li (c) .hero (d) #box
40. 40.🎯 Which element does the selector #intro style? (a) <p id="main"> (b) <p id="intro"> (c) <h1 class="star"> (d) <p class="intro">

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