CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 308 · 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.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
2. 2.🎯 Which CSS selector matches this element?
   <div class="menu" id="intro">Hello</div> (a) .intro (b) .menu (c) #menu (d) #main
3. 3.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <li id="logo"> (c) <h1> (d) <p class="note">
4. 4.True or false: .big is an element selector. (a) False (b) True
5. 5.🎯 Which sign starts a class selector? (a) # (b) @ (c) & (d) .
6. 6.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 id="main"> (c) <h2 class="big"> (d) <h1 class="intro">
7. 7.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <p> (c) <span class="note"> (d) <h1 class="note">
8. 8.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h1 id="end"> (c) <h1 id="hero"> (d) <h2 class="note">
9. 9.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <div class="note"> (c) <li> (d) <h2 class="note">
10. 10.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="menu"> (c) <div id="top"> (d) <h1 class="menu">
12. 12.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) 2 (d) any number
13. 13.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <p class="big"> (c) <span id="logo"> (d) <span class="logo">
16. 16.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
17. 17.🎯 Which element does the selector h1 style? (a) <h1 class="box"> (b) <div id="hero"> (c) <h2> (d) <li class="box">
18. 18.🎯 Which element does the selector #logo style? (a) <li class="big"> (b) <h2 id="end"> (c) <h2 id="logo"> (d) <h2 class="logo">
19. 19.True or false: h1 is an element selector. (a) False (b) True
20. 20.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
21. 21.🎯 Which element does the selector #logo style? (a) <li id="end"> (b) <li class="logo"> (c) <div class="menu"> (d) <li id="logo">
22. 22.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) #menu (b) .menu (c) .main (d) div
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #intro (b) .note (c) h1 (d) .top
24. 24.True or false: #hero is an id selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) #logo (b) .note (c) li (d) .logo
26. 26.🎯 Which element does the selector div style? (a) <p class="box"> (b) <h1 id="main"> (c) <span> (d) <div class="box">
27. 27.True or false: p is an id selector. (a) True (b) False
28. 28.🎯 Which element does the selector h1 style? (a) <h1 class="red"> (b) <li class="red"> (c) <h2> (d) <div id="logo">
29. 29.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <h2 class="box"> (c) <span id="logo"> (d) <li>
30. 30.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
31. 31.True or false: .big is a class selector. (a) False (b) True
32. 32.🎯 Can many elements share the same class? (a) No (b) Yes
33. 33.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <h1 class="red"> (c) <p id="end"> (d) <p id="logo">
34. 34.True or false: #end is an element selector. (a) True (b) False
35. 35.True or false: img is a class selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) #big (b) h1 (c) #end (d) .red
37. 37.🎯 Which element does the selector #end style? (a) <p id="hero"> (b) <h1 class="star"> (c) <p class="end"> (d) <p id="end">
38. 38.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
39. 39.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) h1 (b) h2 (c) .red (d) #big

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