CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 836 · 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) <p class="star"> (b) <span id="main"> (c) <span id="logo"> (d) <span class="main">
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="big" id="intro">Hello</h1> (a) h2 (b) #big (c) .big (d) .intro
3. 3.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <span> (c) <div class="star"> (d) <p class="star">
4. 4.🎯 Which element does the selector #end style? (a) <h2 id="hero"> (b) <h2 id="end"> (c) <h2 class="end"> (d) <li class="box">
5. 5.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
6. 6.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
7. 7.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <h2> (c) <li class="big"> (d) <div id="main">
8. 8.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
10. 10.True or false: #end is an element selector. (a) True (b) False
11. 11.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) h1 (b) .top (c) p (d) #menu
13. 13.True or false: .card is an id selector. (a) False (b) True
14. 14.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <h2 id="end"> (d) <span class="big">
15. 15.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) div (b) #note (c) li (d) .big
16. 16.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <p class="big"> (c) <h1> (d) <li id="top">
17. 17.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
18. 18.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) #intro (b) .big (c) h2 (d) .red
20. 20.🎯 Which element does the selector .red style? (a) <span class="star"> (b) <div class="box"> (c) <div class="red"> (d) <div id="red">
21. 21.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) #note (b) span (c) div (d) #intro
22. 22.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
23. 23.🎯 Which element does the selector .red style? (a) <li class="box"> (b) <div class="star"> (c) <li id="red"> (d) <li class="red">
24. 24.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
25. 25.True or false: #hero is an id selector. (a) False (b) True
26. 26.True or false: #end is an id selector. (a) True (b) False
27. 27.True or false: #end is a class selector. (a) False (b) True
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) #big (b) li (c) .red (d) #intro
29. 29.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) p (b) .intro (c) #big (d) span
30. 30.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) #box (b) h1 (c) .star (d) #logo
31. 31.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) #big (b) #top (c) .big (d) .red
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) li (b) #hero (c) .note (d) h2
33. 33.True or false: .star is an element selector. (a) True (b) False
34. 34.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) #end (b) #box (c) li (d) div
35. 35.True or false: .star is a class selector. (a) True (b) False
36. 36.True or false: #top is an id selector. (a) True (b) False
37. 37.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) #main (b) .intro (c) .red (d) h1
39. 39.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
40. 40.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <h1 id="end"> (d) <div class="box">

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