CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 87 · 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.True or false: .star is an id selector. (a) False (b) True
2. 2.True or false: .star is a class selector. (a) False (b) True
3. 3.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which CSS selector matches this element?
   <h1 class="box" id="top">Hello</h1> (a) #intro (b) #box (c) .star (d) #top
5. 5.🎯 Which CSS selector matches this element?
   <h1 class="box" id="main">Hello</h1> (a) .star (b) h1 (c) .main (d) h2
6. 6.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
7. 7.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
9. 9.🎯 Can many elements share the same class? (a) No (b) Yes
10. 10.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
11. 11.🎯 Which element does the selector #hero style? (a) <span id="hero"> (b) <p class="red"> (c) <span class="hero"> (d) <span id="top">
12. 12.🎯 Which element does the selector .box style? (a) <h2 class="star"> (b) <h2 id="box"> (c) <li class="menu"> (d) <h2 class="box">
13. 13.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
14. 14.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) #intro (b) .star (c) .top (d) .box
16. 16.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #intro (b) #main (c) .intro (d) h1
17. 17.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
18. 18.🎯 Which element does the selector .big style? (a) <p class="red"> (b) <h1 class="box"> (c) <p class="big"> (d) <p id="big">
19. 19.True or false: .note is a class selector. (a) False (b) True
20. 20.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
21. 21.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) #main (b) li (c) .main (d) #logo
23. 23.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .top (b) div (c) #intro (d) .note
24. 24.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
25. 25.True or false: .menu is a class selector. (a) True (b) False
26. 26.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <div class="note"> (c) <p class="note"> (d) <span>
27. 27.🎯 Which element does the selector #hero style? (a) <div class="hero"> (b) <span class="red"> (c) <div id="top"> (d) <div id="hero">
28. 28.True or false: .note is an element selector. (a) True (b) False
29. 29.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <div class="big"> (c) <span class="box"> (d) <div id="big">
30. 30.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
31. 31.🎯 Which element does the selector .box style? (a) <li class="star"> (b) <li class="box"> (c) <div class="menu"> (d) <li id="box">
32. 32.True or false: #main is an id selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #hero (b) .end (c) .star (d) h1
34. 34.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <span class="star"> (d) <p class="note">
36. 36.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) #menu (b) .end (c) #end (d) div
38. 38.🎯 Which CSS selector matches this element?
    <div class="red" id="main">Hello</div> (a) #main (b) .box (c) #logo (d) #red
39. 39.True or false: .card is a class selector. (a) False (b) True
40. 40.🎯 Which element does the selector .menu style? (a) <li class="big"> (b) <h2 class="note"> (c) <h2 class="menu"> (d) <h2 id="menu">

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