CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 336 · 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 .star style? (a) <div class="menu"> (b) <span class="note"> (c) <div id="star"> (d) <div class="star">
2. 2.True or false: .star is an element selector. (a) True (b) False
3. 3.🎯 Which CSS selector matches this element?
   <p class="big" id="top">Hello</p> (a) #big (b) #top (c) .top (d) .red
4. 4.🎯 Which element does the selector div style? (a) <p class="red"> (b) <div class="red"> (c) <span> (d) <h1 id="end">
5. 5.🎯 Which CSS selector matches this element?
   <div class="big" id="logo">Hello</div> (a) #big (b) #end (c) span (d) .big
6. 6.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
7. 7.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which element does the selector .box style? (a) <p class="box"> (b) <h1 class="menu"> (c) <p class="star"> (d) <p id="box">
10. 10.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) li (b) .end (c) div (d) #hero
11. 11.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 Which element does the selector h2 style? (a) <h2 class="note"> (b) <span id="hero"> (c) <li> (d) <div class="note">
13. 13.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) span (b) .logo (c) #logo (d) #big
14. 14.True or false: .card is a class selector. (a) True (b) False
15. 15.🎯 Which element does the selector #top style? (a) <h2 class="menu"> (b) <h1 id="intro"> (c) <h1 class="top"> (d) <h1 id="top">
16. 16.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) #end (b) #box (c) .star (d) #hero
17. 17.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div class="star"> (c) <div class="box"> (d) <div id="box">
18. 18.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <h1 id="hero"> (d) <div class="box">
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) #hero (b) .note (c) .big (d) h2
20. 20.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
21. 21.🎯 Which element does the selector .note style? (a) <div id="note"> (b) <div class="note"> (c) <div class="big"> (d) <span class="red">
22. 22.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) #hero (b) .hero (c) .box (d) #red
23. 23.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) #star (b) #hero (c) #top (d) .hero
26. 26.🎯 Can many elements share the same class? (a) Yes (b) No
27. 27.🎯 Which element does the selector li style? (a) <li class="star"> (b) <div> (c) <p id="intro"> (d) <span class="star">
28. 28.🎯 Which element does the selector #main style? (a) <h2 class="note"> (b) <h1 id="logo"> (c) <h1 id="main"> (d) <h1 class="main">
29. 29.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
30. 30.🎯 Which element does the selector #logo style? (a) <span class="star"> (b) <div id="end"> (c) <div id="logo"> (d) <div class="logo">
31. 31.🎯 Which element does the selector .star style? (a) <h1 class="star"> (b) <h1 id="star"> (c) <h2 class="note"> (d) <h1 class="menu">
32. 32.True or false: .note is an element selector. (a) False (b) True
33. 33.🎯 Which sign starts a class selector? (a) . (b) # (c) & (d) @
34. 34.True or false: .star is a class selector. (a) False (b) True
35. 35.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) .intro (b) #intro (c) .menu (d) h2
37. 37.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
38. 38.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <h1 class="red"> (c) <div id="top"> (d) <h2>
39. 39.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) #logo (b) .main (c) p (d) h1
40. 40.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector

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