CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 715 · 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.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="main">Hello</span> (a) p (b) #main (c) #star (d) .main
3. 3.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 Which element does the selector div style? (a) <span> (b) <div class="big"> (c) <h1 id="intro"> (d) <p class="big">
5. 5.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
6. 6.🎯 Which element does the selector .menu style? (a) <span class="menu"> (b) <span id="menu"> (c) <span class="note"> (d) <p class="big">
7. 7.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <h2> (c) <div id="main"> (d) <h1 class="star">
8. 8.🎯 Which CSS selector matches this element?
   <div class="big" id="top">Hello</div> (a) .big (b) #big (c) #intro (d) .red
9. 9.🎯 Which element does the selector #top style? (a) <li class="red"> (b) <h2 id="intro"> (c) <h2 class="top"> (d) <h2 id="top">
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="red" id="logo">Hello</h1> (a) .box (b) .logo (c) #red (d) #logo
11. 11.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
13. 13.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h2 class="big"> (c) <h1> (d) <li id="end">
14. 14.True or false: #top is an element selector. (a) True (b) False
15. 15.True or false: p is an element selector. (a) False (b) True
16. 16.True or false: body is an element selector. (a) True (b) False
17. 17.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which element does the selector li style? (a) <p id="hero"> (b) <li class="star"> (c) <div> (d) <span class="star">
19. 19.True or false: h1 is an element selector. (a) False (b) True
20. 20.True or false: li is a class selector. (a) False (b) True
21. 21.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
22. 22.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
23. 23.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) any number (d) 5
24. 24.🎯 Which CSS selector matches this element?
    <li class="menu" id="logo">Hello</li> (a) #end (b) .note (c) #menu (d) #logo
25. 25.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
26. 26.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
27. 27.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) #main (b) .menu (c) .intro (d) .note
28. 28.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) #box (b) #top (c) .star (d) .top
31. 31.True or false: .big is a class selector. (a) True (b) False
32. 32.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
33. 33.🎯 Which element does the selector h1 style? (a) <li class="menu"> (b) <h2> (c) <h1 class="menu"> (d) <div id="main">
34. 34.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #big (b) .end (c) .red (d) li
35. 35.🎯 Which element does the selector span style? (a) <span class="note"> (b) <h1 class="note"> (c) <h2 id="intro"> (d) <p>
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) .big (b) h2 (c) #main (d) #big
37. 37.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="note"> (c) <li class="note"> (d) <div id="main">
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) p (b) .big (c) .logo (d) #end
39. 39.🎯 Which element does the selector div style? (a) <div class="note"> (b) <p class="note"> (c) <span> (d) <h1 id="intro">
40. 40.True or false: .star is an element selector. (a) True (b) False

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