CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 844 · 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 .box style? (a) <h1 class="star"> (b) <h2 class="menu"> (c) <h1 class="box"> (d) <h1 id="box">
2. 2.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
3. 3.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
5. 5.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
6. 6.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
7. 7.🎯 Which element does the selector #logo style? (a) <li class="logo"> (b) <li id="end"> (c) <li id="logo"> (d) <div class="box">
8. 8.🎯 Which CSS selector matches this element?
   <div class="menu" id="intro">Hello</div> (a) #main (b) .intro (c) span (d) #intro
9. 9.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="star"> (c) <div id="star"> (d) <div class="menu">
11. 11.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which element does the selector #logo style? (a) <h1 class="logo"> (b) <h1 id="end"> (c) <h1 id="logo"> (d) <h2 class="menu">
13. 13.🎯 Can many elements share the same class? (a) Yes (b) No
14. 14.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
15. 15.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span id="box"> (c) <span class="star"> (d) <span class="box">
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="hero">Hello</h2> (a) #hero (b) #menu (c) .hero (d) li
17. 17.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
18. 18.🎯 Which element does the selector .menu style? (a) <p class="big"> (b) <span id="menu"> (c) <span class="menu"> (d) <span class="note">
19. 19.True or false: .big is a class selector. (a) False (b) True
20. 20.🎯 Which element does the selector li style? (a) <span class="red"> (b) <li class="red"> (c) <p id="main"> (d) <div>
21. 21.🎯 Which CSS selector matches this element?
    <span class="star" id="end">Hello</span> (a) .end (b) #star (c) #end (d) p
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="red" id="top">Hello</h1> (a) .box (b) #top (c) .top (d) #intro
23. 23.True or false: p is a class selector. (a) True (b) False
24. 24.True or false: body is an element selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .note (b) #intro (c) h2 (d) #top
26. 26.🎯 Which element does the selector #main style? (a) <h1 id="main"> (b) <h1 id="logo"> (c) <h2 class="menu"> (d) <h1 class="main">
27. 27.🎯 Which element does the selector p style? (a) <h2 class="red"> (b) <li id="top"> (c) <h1> (d) <p class="red">
28. 28.🎯 Which element does the selector .big style? (a) <h1 class="big"> (b) <h2 class="box"> (c) <h1 class="red"> (d) <h1 id="big">
29. 29.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) .box (b) .top (c) #intro (d) #top
31. 31.🎯 Which element does the selector #logo style? (a) <p id="end"> (b) <p class="logo"> (c) <h1 class="star"> (d) <p id="logo">
32. 32.🎯 Which element does the selector #hero style? (a) <li id="hero"> (b) <li class="hero"> (c) <div class="box"> (d) <li id="top">
33. 33.True or false: #top is a class selector. (a) False (b) True
34. 34.🎯 Which element does the selector #hero style? (a) <p class="note"> (b) <span id="hero"> (c) <span id="top"> (d) <span class="hero">
35. 35.🎯 Which element does the selector #logo style? (a) <span id="logo"> (b) <span class="logo"> (c) <span id="end"> (d) <p class="menu">
36. 36.🎯 Which element does the selector p style? (a) <p class="note"> (b) <h1> (c) <li id="hero"> (d) <h2 class="note">
37. 37.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
38. 38.True or false: #main is an element selector. (a) True (b) False
39. 39.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <span class="star"> (c) <div class="logo"> (d) <div id="logo">
40. 40.🎯 Which CSS selector matches this element?
    <li class="note" id="end">Hello</li> (a) #note (b) .big (c) .note (d) #hero

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