CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 952 · 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: .big is an id selector. (a) True (b) False
2. 2.True or false: body is an element selector. (a) False (b) True
3. 3.🎯 Which sign starts a class selector? (a) . (b) # (c) @ (d) &
4. 4.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 Which CSS selector matches this element?
   <div class="note" id="top">Hello</div> (a) .top (b) div (c) span (d) .big
6. 6.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
7. 7.True or false: #end is an id selector. (a) True (b) False
8. 8.True or false: .note is an element selector. (a) False (b) True
9. 9.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <p class="note"> (c) <span class="menu"> (d) <span id="star">
10. 10.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="red"> (d) <div class="big">
11. 11.🎯 Can many elements share the same class? (a) Yes (b) No
12. 12.🎯 Which element does the selector #top style? (a) <div class="note"> (b) <li id="top"> (c) <li class="top"> (d) <li id="intro">
13. 13.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) p (b) #note (c) h1 (d) .intro
14. 14.True or false: #main is an element selector. (a) False (b) True
15. 15.🎯 Which element does the selector #intro style? (a) <h2 id="intro"> (b) <h2 id="main"> (c) <li class="star"> (d) <h2 class="intro">
16. 16.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
17. 17.True or false: .big is an element selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) div (b) li (c) #box (d) .end
19. 19.True or false: .star is a class selector. (a) True (b) False
20. 20.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
21. 21.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
22. 22.True or false: .menu is an id selector. (a) False (b) True
23. 23.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span class="intro"> (c) <p class="note"> (d) <span id="main">
25. 25.🎯 Which element does the selector #main style? (a) <h2 id="main"> (b) <h2 id="logo"> (c) <li class="note"> (d) <h2 class="main">
26. 26.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <span class="star"> (c) <div id="logo"> (d) <div class="logo">
27. 27.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
29. 29.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p id="box"> (c) <p class="box"> (d) <p class="star">
30. 30.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
31. 31.True or false: #hero is a class selector. (a) True (b) False
32. 32.True or false: #logo is an element selector. (a) False (b) True
33. 33.🎯 Which element does the selector h2 style? (a) <span id="main"> (b) <li> (c) <div class="box"> (d) <h2 class="box">
34. 34.True or false: .note is a class selector. (a) False (b) True
35. 35.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
36. 36.🎯 Which element does the selector .red style? (a) <div class="red"> (b) <div id="red"> (c) <span class="star"> (d) <div class="box">
37. 37.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) li (b) #end (c) .box (d) div
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) .logo (b) .star (c) h1 (d) #box
39. 39.🎯 Which CSS selector matches this element?
    <p class="box" id="hero">Hello</p> (a) #hero (b) #top (c) h1 (d) .star
40. 40.🎯 Which element does the selector .note style? (a) <span class="note"> (b) <p class="red"> (c) <span id="note"> (d) <span class="big">

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