CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 208 · 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 class="star"> (b) <h1 class="red"> (c) <h1 id="red"> (d) <h1 class="box">
2. 2.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
3. 3.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which CSS selector matches this element?
   <h1 class="note" id="logo">Hello</h1> (a) .logo (b) #note (c) h2 (d) #logo
5. 5.🎯 Which element does the selector .box style? (a) <h1 class="box"> (b) <h2 class="menu"> (c) <h1 id="box"> (d) <h1 class="star">
6. 6.🎯 Which element does the selector .note style? (a) <div class="red"> (b) <li id="note"> (c) <li class="big"> (d) <li class="note">
7. 7.True or false: #end is an element selector. (a) False (b) True
8. 8.True or false: #main is a class selector. (a) True (b) False
9. 9.True or false: body is an element selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) h2 (b) .main (c) h1 (d) .star
11. 11.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <h1 id="logo"> (c) <span> (d) <div class="menu">
12. 12.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div class="note"> (c) <div class="big"> (d) <div id="note">
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) .box (b) #red (c) #intro (d) li
14. 14.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <p class="red"> (c) <span class="logo"> (d) <span id="logo">
15. 15.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) p (b) span (c) .main (d) #logo
16. 16.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) .red (b) div (c) #big (d) li
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .note (b) #menu (c) h2 (d) h1
18. 18.🎯 Which CSS selector matches this element?
    <div class="big" id="main">Hello</div> (a) #big (b) .big (c) #logo (d) .red
19. 19.True or false: #top is a class selector. (a) True (b) False
20. 20.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
21. 21.🎯 Can many elements share the same class? (a) Yes (b) No
22. 22.True or false: .star is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) #hero (b) h2 (c) #end (d) #red
24. 24.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) .top (b) #intro (c) .red (d) .box
25. 25.🎯 Which element does the selector #intro style? (a) <h1 class="intro"> (b) <h2 class="menu"> (c) <h1 id="intro"> (d) <h1 id="main">
26. 26.True or false: .menu is a class selector. (a) False (b) True
27. 27.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
28. 28.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) .intro (b) #note (c) #intro (d) #main
29. 29.🎯 Which element does the selector .big style? (a) <p class="red"> (b) <p id="big"> (c) <p class="big"> (d) <h1 class="box">
30. 30.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
32. 32.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="big"> (c) <div id="hero"> (d) <h1 class="big">
33. 33.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) .intro (b) #main (c) h1 (d) #note
35. 35.True or false: img is a class selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) span (b) .intro (c) #box (d) .box
37. 37.True or false: img is an element selector. (a) True (b) False
38. 38.🎯 Which element does the selector #main style? (a) <span class="main"> (b) <span id="logo"> (c) <span id="main"> (d) <p class="note">
39. 39.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
40. 40.🎯 Which element does the selector #intro style? (a) <p id="main"> (b) <p class="intro"> (c) <h1 class="note"> (d) <p id="intro">

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