CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 59 · 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?
   <h1 class="note" id="logo">Hello</h1> (a) .logo (b) #note (c) #end (d) #logo
2. 2.🎯 Which CSS selector matches this element?
   <p class="note" id="main">Hello</p> (a) .note (b) #note (c) .big (d) h1
3. 3.🎯 Which element does the selector .big style? (a) <div class="big"> (b) <div class="red"> (c) <span class="box"> (d) <div id="big">
4. 4.True or false: img is a class selector. (a) False (b) True
5. 5.🎯 Which element does the selector #intro style? (a) <h2 id="main"> (b) <h2 id="intro"> (c) <h2 class="intro"> (d) <li class="note">
6. 6.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 2 (d) 5
7. 7.🎯 Which element does the selector #top style? (a) <li class="box"> (b) <h2 id="top"> (c) <h2 id="intro"> (d) <h2 class="top">
8. 8.🎯 Which CSS selector matches this element?
   <p class="big" id="top">Hello</p> (a) .big (b) #big (c) .top (d) h1
9. 9.🎯 Which CSS selector matches this element?
   <li class="note" id="logo">Hello</li> (a) .logo (b) #note (c) .note (d) .big
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.True or false: #logo is an element selector. (a) False (b) True
12. 12.True or false: #logo is an id selector. (a) False (b) True
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) #logo (b) .big (c) li (d) #end
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) li (b) .hero (c) #hero (d) #top
15. 15.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) .menu (b) .note (c) #hero (d) .end
16. 16.True or false: p is an element selector. (a) True (b) False
17. 17.True or false: #top is an element selector. (a) False (b) True
18. 18.True or false: .big is a class selector. (a) True (b) False
19. 19.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) #menu (b) .top (c) li (d) #intro
20. 20.True or false: p is a class selector. (a) False (b) True
21. 21.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which element does the selector span style? (a) <span class="star"> (b) <h2 id="end"> (c) <p> (d) <h1 class="star">
23. 23.🎯 Which element does the selector p style? (a) <h1> (b) <li id="logo"> (c) <h2 class="box"> (d) <p class="box">
24. 24.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h2 class="note"> (c) <h1 id="end"> (d) <h1 id="hero">
25. 25.🎯 Which element does the selector p style? (a) <li id="top"> (b) <p class="star"> (c) <h2 class="star"> (d) <h1>
26. 26.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) span (b) #intro (c) #menu (d) div
27. 27.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
28. 28.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
29. 29.True or false: h1 is a class selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .box (b) .star (c) #hero (d) .end
31. 31.🎯 Which element does the selector li style? (a) <p id="main"> (b) <div> (c) <span class="star"> (d) <li class="star">
32. 32.True or false: #hero is an element selector. (a) True (b) False
33. 33.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
34. 34.True or false: li is a class selector. (a) True (b) False
35. 35.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <h2 class="note"> (c) <h2 class="menu"> (d) <li class="big">
36. 36.True or false: .menu is a class selector. (a) False (b) True
37. 37.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
38. 38.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
39. 39.True or false: .note is an id selector. (a) False (b) True
40. 40.🎯 Which element does the selector h2 style? (a) <h2 class="star"> (b) <li> (c) <div class="star"> (d) <span id="top">

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