CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 192 · 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 .red style? (a) <h2 id="red"> (b) <li class="star"> (c) <h2 class="red"> (d) <h2 class="box">
2. 2.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
3. 3.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
4. 4.🎯 Which CSS selector matches this element?
   <p class="star" id="hero">Hello</p> (a) #star (b) #top (c) .menu (d) .star
5. 5.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <p class="menu"> (c) <span id="logo"> (d) <span id="end">
6. 6.True or false: .note is a class selector. (a) False (b) True
7. 7.🎯 Which CSS selector matches this element?
   <li class="big" id="logo">Hello</li> (a) .red (b) div (c) #end (d) .big
8. 8.🎯 Which CSS selector matches this element?
   <li class="box" id="end">Hello</li> (a) .end (b) .star (c) div (d) .box
9. 9.🎯 Which element does the selector #intro style? (a) <div id="intro"> (b) <div class="intro"> (c) <span class="red"> (d) <div id="main">
10. 10.True or false: .star is an element selector. (a) True (b) False
11. 11.True or false: li is a class selector. (a) False (b) True
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) #top (b) p (c) #red (d) .hero
13. 13.True or false: #end is a class selector. (a) False (b) True
14. 14.True or false: .big is a class selector. (a) True (b) False
15. 15.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
16. 16.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <h1 class="menu"> (c) <p> (d) <span class="menu">
17. 17.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
18. 18.🎯 Which sign starts a class selector? (a) . (b) & (c) @ (d) #
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) h1 (b) #hero (c) .end (d) #red
20. 20.True or false: #end is an element selector. (a) False (b) True
21. 21.🎯 Can many elements share the same class? (a) No (b) Yes
22. 22.True or false: li is an element selector. (a) False (b) True
23. 23.True or false: body is an element selector. (a) True (b) False
24. 24.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <h2> (c) <li class="red"> (d) <h1 class="red">
25. 25.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) .big (b) #note (c) .logo (d) #logo
26. 26.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .main (b) .menu (c) #logo (d) .note
27. 27.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) h2 (b) li (c) .top (d) .big
29. 29.🎯 Which element does the selector #top style? (a) <h2 id="top"> (b) <li class="note"> (c) <h2 id="intro"> (d) <h2 class="top">
30. 30.🎯 Which element does the selector #logo style? (a) <h2 class="logo"> (b) <h2 id="end"> (c) <li class="menu"> (d) <h2 id="logo">
31. 31.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="logo"> (c) <div class="note"> (d) <p class="note">
33. 33.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) .main (b) #big (c) .big (d) h1
34. 34.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
35. 35.🎯 Which element does the selector .big style? (a) <h2 class="big"> (b) <li class="box"> (c) <h2 id="big"> (d) <h2 class="red">
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) .logo (b) .big (c) .note (d) h2
37. 37.🎯 Which element does the selector .red style? (a) <div class="red"> (b) <span class="star"> (c) <div id="red"> (d) <div class="box">
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) .intro (b) h2 (c) #main (d) .box
39. 39.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
40. 40.🎯 Which element does the selector h2 style? (a) <h2 class="box"> (b) <div class="box"> (c) <li> (d) <span id="top">

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