CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 798 · 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 CSS selector matches this element?
   <div class="box" id="end">Hello</div> (a) .star (b) div (c) .end (d) #box
2. 2.True or false: .menu is an element selector. (a) True (b) False
3. 3.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="star"> (d) <li class="menu">
4. 4.True or false: p is an element selector. (a) True (b) False
5. 5.🎯 Which CSS selector matches this element?
   <p class="box" id="logo">Hello</p> (a) .logo (b) #logo (c) #end (d) #box
6. 6.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span class="star">
7. 7.🎯 Which CSS selector matches this element?
   <div class="menu" id="intro">Hello</div> (a) .intro (b) .menu (c) .note (d) span
8. 8.🎯 Which element does the selector #hero style? (a) <span id="hero"> (b) <p class="note"> (c) <span id="top"> (d) <span class="hero">
9. 9.🎯 Can many elements share the same class? (a) Yes (b) No
10. 10.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) #end (b) .menu (c) .logo (d) .note
11. 11.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 2 (d) 5
12. 12.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) p (b) .main (c) #note (d) #main
13. 13.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
15. 15.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
16. 16.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <h1 class="note"> (c) <li class="note"> (d) <h2>
17. 17.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
18. 18.🎯 Which element does the selector .big style? (a) <h1 id="big"> (b) <h2 class="box"> (c) <h1 class="red"> (d) <h1 class="big">
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="logo">Hello</h1> (a) h2 (b) .logo (c) #menu (d) #logo
20. 20.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
21. 21.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) #intro (b) #big (c) #main (d) h1
22. 22.🎯 Which element does the selector #top style? (a) <h2 id="top"> (b) <li class="menu"> (c) <h2 id="intro"> (d) <h2 class="top">
23. 23.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) span (b) #logo (c) .logo (d) #end
24. 24.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
26. 26.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 class="note"> (c) <h1 id="note"> (d) <h2 class="red">
27. 27.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) span (b) p (c) .red (d) .end
28. 28.True or false: p is an id selector. (a) False (b) True
29. 29.True or false: .big is an id selector. (a) True (b) False
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) #hero (b) .note (c) h1 (d) h2
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="red" id="logo">Hello</h1> (a) .box (b) #logo (c) .logo (d) h2
32. 32.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .menu (b) p (c) #main (d) .star
33. 33.🎯 Which element does the selector #logo style? (a) <h1 class="logo"> (b) <h1 id="end"> (c) <h1 id="logo"> (d) <h2 class="star">
34. 34.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p> (a) .main (b) #star (c) .star (d) h1
35. 35.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) div (b) #hero (c) #box (d) li
36. 36.🎯 Which element does the selector p style? (a) <h1> (b) <li id="hero"> (c) <p class="star"> (d) <h2 class="star">
37. 37.🎯 Which element does the selector h2 style? (a) <h2 class="star"> (b) <li> (c) <span id="top"> (d) <div class="star">
38. 38.🎯 Which element does the selector li style? (a) <li class="box"> (b) <p id="hero"> (c) <div> (d) <span class="box">
39. 39.🎯 Which element does the selector #end style? (a) <span class="red"> (b) <div class="end"> (c) <div id="hero"> (d) <div id="end">
40. 40.True or false: #top is a class selector. (a) True (b) False

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