CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 193 · 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 .menu style? (a) <h2 class="menu"> (b) <h2 id="menu"> (c) <h2 class="note"> (d) <li class="big">
2. 2.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="box"> (c) <div id="hero"> (d) <h1 class="box">
3. 3.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <li class="menu"> (c) <li class="star"> (d) <div class="note">
5. 5.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
6. 6.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
7. 7.🎯 Which CSS selector matches this element?
   <li class="red" id="top">Hello</li> (a) .top (b) .box (c) #red (d) #top
8. 8.🎯 Which CSS selector matches this element?
   <span class="big" id="end">Hello</span> (a) .big (b) .end (c) #big (d) #hero
9. 9.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) 1 (d) any number
10. 10.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
11. 11.True or false: body is an id selector. (a) True (b) False
12. 12.🎯 Which element does the selector div style? (a) <p class="big"> (b) <span> (c) <h1 id="logo"> (d) <div class="big">
13. 13.🎯 Which element does the selector .star style? (a) <h2 class="star"> (b) <h2 id="star"> (c) <h2 class="menu"> (d) <li class="note">
14. 14.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
15. 15.🎯 Which element does the selector #main style? (a) <div class="big"> (b) <li id="logo"> (c) <li id="main"> (d) <li class="main">
16. 16.🎯 Can many elements share the same class? (a) Yes (b) No
17. 17.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which element does the selector #top style? (a) <p id="top"> (b) <h1 class="big"> (c) <p id="intro"> (d) <p class="top">
19. 19.True or false: #logo is a class selector. (a) False (b) True
20. 20.True or false: .card is a class selector. (a) False (b) True
21. 21.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="end"> (c) <h1 class="red"> (d) <li class="red">
22. 22.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h2 class="big"> (c) <h1 class="menu"> (d) <h1 id="menu">
23. 23.🎯 Which sign starts a class selector? (a) # (b) @ (c) . (d) &
24. 24.True or false: #end is a class selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) .logo (b) #big (c) li (d) #logo
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) #end (b) h2 (c) .star (d) h1
27. 27.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
28. 28.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) #main (b) .intro (c) #intro (d) .big
29. 29.True or false: body is an element selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) .logo (b) h1 (c) p (d) #star
31. 31.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) #note (b) .intro (c) .note (d) .big
32. 32.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
33. 33.🎯 Which element does the selector .note style? (a) <h2 class="red"> (b) <h1 class="big"> (c) <h1 class="note"> (d) <h1 id="note">
34. 34.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .
36. 36.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) #logo (b) .logo (c) span (d) #end
37. 37.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) p (b) .big (c) #note (d) .note
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) .red (b) #hero (c) #end (d) #big
39. 39.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
40. 40.True or false: #main is an element selector. (a) False (b) True

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