CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 446 · 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="menu" id="top">Hello</span> (a) .top (b) p (c) #menu (d) .menu
3. 3.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
4. 4.🎯 Which element does the selector #end style? (a) <h2 id="end"> (b) <li class="red"> (c) <h2 class="end"> (d) <h2 id="hero">
5. 5.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
6. 6.True or false: #hero is an element selector. (a) False (b) True
7. 7.🎯 Which CSS selector matches this element?
   <li class="note" id="intro">Hello</li> (a) #note (b) .intro (c) .big (d) .note
8. 8.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
9. 9.True or false: #end is an id selector. (a) False (b) True
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) li (b) #intro (c) .top (d) .note
11. 11.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) .star (b) .end (c) span (d) #box
12. 12.True or false: body is a class selector. (a) False (b) True
13. 13.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) h2 (b) #note (c) .logo (d) #end
15. 15.🎯 Which element does the selector li style? (a) <p id="main"> (b) <div> (c) <li class="menu"> (d) <span class="menu">
16. 16.True or false: img is an element selector. (a) False (b) True
17. 17.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <li class="big"> (c) <h2 class="menu"> (d) <h2 id="menu">
18. 18.True or false: .menu is an element selector. (a) True (b) False
19. 19.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .main (b) #note (c) span (d) .note
20. 20.True or false: .star is an element selector. (a) True (b) False
21. 21.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) #logo (b) h1 (c) h2 (d) .red
23. 23.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) .note (b) div (c) #top (d) .menu
24. 24.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <p class="menu"> (c) <h1> (d) <li id="logo">
26. 26.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
27. 27.🎯 Which element does the selector #intro style? (a) <li id="intro"> (b) <div class="big"> (c) <li class="intro"> (d) <li id="main">
28. 28.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <h1> (c) <p class="big"> (d) <li id="hero">
29. 29.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
30. 30.🎯 Which element does the selector .note style? (a) <li class="big"> (b) <li id="note"> (c) <li class="note"> (d) <div class="red">
31. 31.True or false: .note is an element selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) #top (b) .menu (c) #star (d) p
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) #intro (b) #top (c) #red (d) .box
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) .intro (b) .menu (c) #main (d) .star
35. 35.True or false: #end is a class selector. (a) False (b) True
36. 36.True or false: .note is a class selector. (a) True (b) False
37. 37.🎯 Can many elements share the same class? (a) Yes (b) No
38. 38.True or false: .big is a class selector. (a) False (b) True
39. 39.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) #star (b) h1 (c) #end (d) .star

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