CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 81 · 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="box" id="logo">Hello</div> (a) span (b) #end (c) #box (d) .box
2. 2.🎯 Which CSS selector matches this element?
   <li class="red" id="intro">Hello</li> (a) div (b) #red (c) li (d) .intro
3. 3.🎯 Which CSS selector matches this element?
   <li class="star" id="main">Hello</li> (a) #star (b) div (c) .menu (d) #main
4. 4.🎯 Which element does the selector li style? (a) <li class="note"> (b) <p id="hero"> (c) <div> (d) <span class="note">
5. 5.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
6. 6.🎯 Which CSS selector matches this element?
   <div class="star" id="logo">Hello</div> (a) #star (b) #logo (c) #end (d) .logo
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
9. 9.True or false: .big is a class selector. (a) False (b) True
10. 10.🎯 Which element does the selector span style? (a) <h2 id="end"> (b) <h1 class="menu"> (c) <span class="menu"> (d) <p>
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) .red (b) #main (c) #big (d) .main
12. 12.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <span id="end"> (c) <span id="logo"> (d) <p class="note">
13. 13.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which sign starts a class selector? (a) . (b) # (c) & (d) @
15. 15.True or false: body is a class selector. (a) True (b) False
16. 16.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
17. 17.🎯 Which element does the selector #end style? (a) <p id="hero"> (b) <h1 class="big"> (c) <p class="end"> (d) <p id="end">
18. 18.True or false: .card is a class selector. (a) False (b) True
19. 19.True or false: #end is an id selector. (a) True (b) False
20. 20.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
21. 21.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) .star (b) #star (c) #intro (d) .menu
22. 22.🎯 What kind of selector is h1? (a) a class selector (b) an element selector (c) an id selector
23. 23.True or false: .note is an element selector. (a) True (b) False
24. 24.True or false: .note is a class selector. (a) False (b) True
25. 25.🎯 Which element does the selector #end style? (a) <li id="end"> (b) <li class="end"> (c) <div class="note"> (d) <li id="hero">
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #hero (b) .big (c) .end (d) #big
27. 27.🎯 Which element does the selector .note style? (a) <h2 class="big"> (b) <li class="red"> (c) <h2 class="note"> (d) <h2 id="note">
28. 28.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) .top (b) p (c) .big (d) #note
29. 29.True or false: #logo is an id selector. (a) True (b) False
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) #top (b) li (c) h2 (d) .hero
31. 31.True or false: #logo is a class selector. (a) False (b) True
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) h2 (b) .big (c) .note (d) #intro
33. 33.🎯 Which element does the selector .note style? (a) <span class="note"> (b) <span class="big"> (c) <span id="note"> (d) <p class="red">
34. 34.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
35. 35.🎯 Which element does the selector .star style? (a) <p class="star"> (b) <p id="star"> (c) <p class="menu"> (d) <h1 class="note">
36. 36.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
37. 37.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
38. 38.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="top"> (c) <div class="big"> (d) <h2 class="big">
39. 39.🎯 Which element does the selector h2 style? (a) <h2 class="menu"> (b) <li> (c) <span id="main"> (d) <div class="menu">
40. 40.🎯 Which element does the selector span style? (a) <p> (b) <span class="big"> (c) <h2 id="end"> (d) <h1 class="big">

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