CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 218 · 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?
   <div class="red" id="top">Hello</div> (a) .top (b) div (c) #intro (d) #red
2. 2.🎯 Which element does the selector #top style? (a) <p class="top"> (b) <h1 class="box"> (c) <p id="top"> (d) <p id="intro">
3. 3.🎯 Which element does the selector p style? (a) <h1> (b) <li id="main"> (c) <h2 class="note"> (d) <p class="note">
4. 4.True or false: #end is an id selector. (a) False (b) True
5. 5.🎯 Can many elements share the same class? (a) Yes (b) No
6. 6.True or false: .star is a class selector. (a) True (b) False
7. 7.🎯 Which element does the selector h1 style? (a) <h1 class="box"> (b) <div id="logo"> (c) <h2> (d) <li class="box">
8. 8.True or false: img is a class selector. (a) True (b) False
9. 9.🎯 Which element does the selector span style? (a) <span class="box"> (b) <h1 class="box"> (c) <p> (d) <h2 id="top">
10. 10.🎯 Which element does the selector #top style? (a) <h2 class="star"> (b) <h1 id="intro"> (c) <h1 id="top"> (d) <h1 class="top">
11. 11.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 Which element does the selector #logo style? (a) <li id="end"> (b) <li id="logo"> (c) <div class="note"> (d) <li class="logo">
13. 13.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) #end (b) .note (c) p (d) .menu
14. 14.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
15. 15.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) .main (b) div (c) .big (d) #logo
16. 16.🎯 Which element does the selector h2 style? (a) <h2 class="star"> (b) <span id="intro"> (c) <div class="star"> (d) <li>
17. 17.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
18. 18.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #menu (b) .top (c) .menu (d) h2
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) .hero (b) #box (c) li (d) #hero
20. 20.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) #note (b) span (c) .intro (d) #intro
21. 21.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <p class="star"> (c) <span id="top"> (d) <span class="top">
22. 22.True or false: .menu is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <li class="red" id="top">Hello</li> (a) .box (b) #red (c) #intro (d) #top
24. 24.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 Which element does the selector div style? (a) <span> (b) <div class="star"> (c) <h1 id="main"> (d) <p class="star">
26. 26.🎯 Which element does the selector li style? (a) <div> (b) <p id="logo"> (c) <li class="menu"> (d) <span class="menu">
27. 27.True or false: .star is an element selector. (a) False (b) True
28. 28.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) .menu (b) .note (c) #menu (d) #end
29. 29.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .red (b) li (c) #big (d) #end
30. 30.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) h1 (b) #note (c) #end (d) #logo
31. 31.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
32. 32.🎯 Which element does the selector h1 style? (a) <h1 class="note"> (b) <div id="intro"> (c) <li class="note"> (d) <h2>
33. 33.🎯 Which element does the selector #main style? (a) <h2 class="big"> (b) <h1 id="main"> (c) <h1 class="main"> (d) <h1 id="logo">
34. 34.True or false: h1 is a class selector. (a) True (b) False
35. 35.🎯 Which element does the selector .box style? (a) <span class="star"> (b) <span class="box"> (c) <p class="menu"> (d) <span id="box">
36. 36.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
38. 38.True or false: .note is an element selector. (a) False (b) True
39. 39.🎯 Which element does the selector h2 style? (a) <span id="logo"> (b) <li> (c) <div class="red"> (d) <h2 class="red">
40. 40.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) h1 (b) .box (c) #red (d) #main

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