CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 834 · 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 element does the selector #main style? (a) <span class="main"> (b) <span id="logo"> (c) <p class="star"> (d) <span id="main">
2. 2.🎯 Which element does the selector p style? (a) <p class="box"> (b) <h2 class="box"> (c) <li id="intro"> (d) <h1>
3. 3.🎯 Which CSS selector matches this element?
   <span class="note" id="hero">Hello</span> (a) #top (b) .big (c) .hero (d) .note
4. 4.🎯 Which CSS selector matches this element?
   <p class="note" id="hero">Hello</p> (a) h1 (b) #top (c) #note (d) .note
5. 5.🎯 Which element does the selector #top style? (a) <li class="red"> (b) <h2 class="top"> (c) <h2 id="intro"> (d) <h2 id="top">
6. 6.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
7. 7.🎯 Which CSS selector matches this element?
   <span class="red" id="logo">Hello</span> (a) #red (b) .logo (c) .red (d) p
8. 8.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
9. 9.True or false: .menu is a class selector. (a) False (b) True
10. 10.🎯 Can many elements share the same class? (a) Yes (b) No
11. 11.True or false: .big is an id selector. (a) False (b) True
12. 12.🎯 Which element does the selector .big style? (a) <div class="box"> (b) <li id="big"> (c) <li class="red"> (d) <li class="big">
13. 13.🎯 Which element does the selector #end style? (a) <div id="hero"> (b) <span class="star"> (c) <div id="end"> (d) <div class="end">
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) #big (b) .logo (c) .big (d) #end
15. 15.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) p (b) #intro (c) h1 (d) #menu
16. 16.True or false: p is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <li class="note" id="end">Hello</li> (a) li (b) div (c) .big (d) #note
18. 18.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
19. 19.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
20. 20.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) #end (b) .logo (c) .star (d) .box
21. 21.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) #box (b) .main (c) #logo (d) #main
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) div (b) #box (c) .star (d) #main
23. 23.🎯 Which element does the selector h2 style? (a) <span id="logo"> (b) <h2 class="note"> (c) <div class="note"> (d) <li>
24. 24.🎯 Which element does the selector p style? (a) <li id="main"> (b) <p class="menu"> (c) <h1> (d) <h2 class="menu">
25. 25.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
26. 26.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
27. 27.🎯 Which element does the selector h2 style? (a) <span id="top"> (b) <li> (c) <h2 class="star"> (d) <div class="star">
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) #main (b) #star (c) li (d) #logo
29. 29.True or false: img is a class selector. (a) False (b) True
30. 30.🎯 Which element does the selector h1 style? (a) <li class="menu"> (b) <div id="end"> (c) <h2> (d) <h1 class="menu">
31. 31.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h2 class="big"> (c) <h1> (d) <p class="big">
32. 32.True or false: #logo is an id selector. (a) True (b) False
33. 33.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) h1 (b) #menu (c) .menu (d) #main
34. 34.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) .box (b) .top (c) h1 (d) .star
35. 35.🎯 Which element does the selector #end style? (a) <span class="end"> (b) <span id="hero"> (c) <span id="end"> (d) <p class="box">
36. 36.True or false: #end is an id selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #top (b) h1 (c) #intro (d) .top
38. 38.True or false: .star is a class selector. (a) True (b) False
39. 39.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
40. 40.🎯 Which element does the selector span style? (a) <h1 class="star"> (b) <h2 id="end"> (c) <span class="star"> (d) <p>

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