CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 396 · 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 div style? (a) <span> (b) <h1 id="logo"> (c) <div class="big"> (d) <p class="big">
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="star" id="main">Hello</h2> (a) #logo (b) .main (c) #star (d) h2
3. 3.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
4. 4.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
5. 5.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <div class="main"> (c) <div id="main"> (d) <span class="big">
7. 7.True or false: img is an id selector. (a) False (b) True
8. 8.True or false: #end is a class selector. (a) False (b) True
9. 9.True or false: li is a class selector. (a) False (b) True
10. 10.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
11. 11.🎯 Which element does the selector .note style? (a) <span class="note"> (b) <span id="note"> (c) <p class="red"> (d) <span class="big">
12. 12.🎯 Which sign starts an id selector? (a) & (b) @ (c) # (d) .
13. 13.True or false: .menu is an element selector. (a) False (b) True
14. 14.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <div class="red"> (c) <li id="intro"> (d) <li id="main">
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) li (b) #star (c) .star (d) #end
16. 16.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
17. 17.True or false: .note is an element selector. (a) False (b) True
18. 18.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
19. 19.True or false: #main is a class selector. (a) True (b) False
20. 20.🎯 Can many elements share the same class? (a) No (b) Yes
21. 21.🎯 Which element does the selector span style? (a) <span class="red"> (b) <p> (c) <h1 class="red"> (d) <h2 id="end">
22. 22.True or false: #main is an id selector. (a) False (b) True
23. 23.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
24. 24.True or false: p is an element selector. (a) True (b) False
25. 25.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="main"> (c) <li id="logo"> (d) <div class="menu">
26. 26.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
27. 27.True or false: .star is a class selector. (a) True (b) False
28. 28.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <p id="intro"> (c) <li class="menu"> (d) <div>
29. 29.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) #star (b) div (c) .main (d) .star
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) .big (b) h2 (c) #big (d) .red
31. 31.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) h1 (b) .star (c) #intro (d) #main
32. 32.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <h1 class="red"> (c) <h2> (d) <li class="red">
33. 33.🎯 Which element does the selector #logo style? (a) <p id="logo"> (b) <p id="end"> (c) <h1 class="menu"> (d) <p class="logo">
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) .note (c) .menu (d) #intro
35. 35.True or false: .star is an id selector. (a) False (b) True
36. 36.🎯 Which element does the selector #main style? (a) <h1 id="main"> (b) <h1 id="logo"> (c) <h2 class="star"> (d) <h1 class="main">
37. 37.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) #star (b) .main (c) span (d) .star
38. 38.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h2 class="red"> (c) <p class="red"> (d) <h1>
39. 39.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="note"> (c) <span class="menu"> (d) <p class="big">
40. 40.True or false: #logo is an id selector. (a) False (b) True

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