CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 853 · 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.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
2. 2.🎯 Which element does the selector .red style? (a) <p id="red"> (b) <p class="box"> (c) <h1 class="star"> (d) <p class="red">
3. 3.🎯 Which CSS selector matches this element?
   <li class="red" id="end">Hello</li> (a) .box (b) .end (c) #hero (d) #end
4. 4.🎯 Which element does the selector .star style? (a) <li class="star"> (b) <div class="note"> (c) <li id="star"> (d) <li class="menu">
5. 5.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 class="big"> (c) <h1 class="red"> (d) <h1 id="big">
6. 6.🎯 Which element does the selector #hero style? (a) <span id="top"> (b) <span id="hero"> (c) <p class="box"> (d) <span class="hero">
7. 7.True or false: .card is a class selector. (a) True (b) False
8. 8.🎯 Which CSS selector matches this element?
   <span class="red" id="main">Hello</span> (a) .box (b) span (c) #logo (d) .main
9. 9.True or false: .star is a class selector. (a) True (b) False
10. 10.🎯 Which element does the selector h2 style? (a) <li> (b) <h2 class="big"> (c) <span id="end"> (d) <div class="big">
11. 11.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) .logo (b) .star (c) #star (d) span
12. 12.🎯 Which element does the selector .big style? (a) <p class="red"> (b) <p id="big"> (c) <h1 class="box"> (d) <p class="big">
13. 13.🎯 Which element does the selector #hero style? (a) <li id="top"> (b) <div class="menu"> (c) <li class="hero"> (d) <li id="hero">
14. 14.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="box"> (c) <span id="end"> (d) <h2 class="box">
15. 15.🎯 Which CSS selector matches this element?
    <div class="big" id="main">Hello</div> (a) div (b) #big (c) .main (d) .red
16. 16.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="main"> (c) <div class="menu"> (d) <h2 class="menu">
17. 17.True or false: .note is an element selector. (a) False (b) True
18. 18.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span id="star">
19. 19.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <span> (c) <p class="big"> (d) <div class="big">
20. 20.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
21. 21.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
22. 22.True or false: .menu is a class selector. (a) True (b) False
23. 23.True or false: #hero is a class selector. (a) True (b) False
24. 24.True or false: h1 is an element selector. (a) False (b) True
25. 25.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which CSS selector matches this element?
    <li class="red" id="main">Hello</li> (a) li (b) .box (c) #red (d) .main
27. 27.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) .big (b) .logo (c) #logo (d) #end
28. 28.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) .logo (b) .big (c) h1 (d) #logo
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) .end (b) #hero (c) h1 (d) h2
30. 30.🎯 Which element does the selector #logo style? (a) <span class="menu"> (b) <div class="logo"> (c) <div id="end"> (d) <div id="logo">
31. 31.True or false: .note is a class selector. (a) False (b) True
32. 32.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
33. 33.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) .main (b) #logo (c) p (d) h1
34. 34.🎯 Which sign starts an id selector? (a) @ (b) # (c) . (d) &
35. 35.🎯 Which element does the selector li style? (a) <li class="red"> (b) <span class="red"> (c) <p id="end"> (d) <div>
36. 36.True or false: .big is a class selector. (a) True (b) False
37. 37.True or false: body is an element selector. (a) False (b) True
38. 38.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="logo"> (c) <li id="main"> (d) <div class="menu">
39. 39.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
40. 40.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector

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