CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 854 · 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?
   <h2 class="menu" id="main">Hello</h2> (a) #logo (b) #menu (c) h2 (d) li
2. 2.🎯 Which element does the selector p style? (a) <li id="top"> (b) <p class="star"> (c) <h2 class="star"> (d) <h1>
3. 3.🎯 Which element does the selector #intro style? (a) <div id="main"> (b) <div id="intro"> (c) <div class="intro"> (d) <span class="box">
4. 4.🎯 Which element does the selector .big style? (a) <li class="red"> (b) <div class="box"> (c) <li class="big"> (d) <li id="big">
5. 5.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 Which element does the selector #top style? (a) <h2 class="menu"> (b) <h1 id="intro"> (c) <h1 id="top"> (d) <h1 class="top">
7. 7.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <span class="box" id="end">Hello</span> (a) #hero (b) #box (c) .end (d) span
9. 9.True or false: h1 is a class selector. (a) True (b) False
10. 10.True or false: #end is an id selector. (a) True (b) False
11. 11.🎯 Which sign starts an id selector? (a) # (b) @ (c) . (d) &
12. 12.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <span class="star"> (c) <p> (d) <h1 class="star">
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) h2 (b) .end (c) #note (d) #end
14. 14.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
15. 15.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
16. 16.True or false: .card is an element selector. (a) True (b) False
17. 17.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
18. 18.True or false: body is a class selector. (a) True (b) False
19. 19.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) h1 (b) #main (c) p (d) .star
20. 20.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="main"> (c) <h2 class="note"> (d) <div class="note">
21. 21.🎯 Which element does the selector .red style? (a) <h2 id="red"> (b) <h2 class="box"> (c) <h2 class="red"> (d) <li class="star">
22. 22.🎯 What kind of selector is .note? (a) a class selector (b) an element selector (c) an id selector
23. 23.True or false: body is an id selector. (a) False (b) True
24. 24.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) p (b) .menu (c) #intro (d) h1
25. 25.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <div id="main"> (c) <h1 class="note"> (d) <h2>
26. 26.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h2 class="big"> (c) <h1 id="end"> (d) <h1 id="hero">
27. 27.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="star"> (c) <div class="menu"> (d) <div id="star">
28. 28.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <span class="red"> (c) <li class="red"> (d) <div>
29. 29.🎯 Can many elements share the same class? (a) No (b) Yes
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="box" id="intro">Hello</h2> (a) #intro (b) li (c) #main (d) .intro
31. 31.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <p id="logo"> (c) <li class="menu"> (d) <div>
32. 32.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
33. 33.True or false: .note is a class selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) .hero (b) .red (c) #big (d) .big
35. 35.🎯 Which element does the selector #top style? (a) <li id="intro"> (b) <div class="box"> (c) <li class="top"> (d) <li id="top">
36. 36.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <li> (c) <div class="big"> (d) <h2 class="big">
37. 37.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
38. 38.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which CSS selector matches this element?
    <li class="menu" id="logo">Hello</li> (a) .menu (b) #menu (c) div (d) #end
40. 40.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector

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