CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 997 · 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?
   <p class="star" id="main">Hello</p> (a) h1 (b) #star (c) #logo (d) p
2. 2.🎯 Which element does the selector #top style? (a) <span class="top"> (b) <p class="red"> (c) <span id="top"> (d) <span id="intro">
3. 3.🎯 Which CSS selector matches this element?
   <p class="menu" id="logo">Hello</p> (a) #end (b) h1 (c) .note (d) #logo
4. 4.True or false: li is an element selector. (a) True (b) False
5. 5.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
6. 6.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li class="end"> (c) <li id="end"> (d) <div class="big">
7. 7.🎯 Can many elements share the same class? (a) Yes (b) No
8. 8.🎯 Which CSS selector matches this element?
   <div class="red" id="intro">Hello</div> (a) div (b) span (c) .intro (d) .box
9. 9.True or false: #main is a class selector. (a) True (b) False
10. 10.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) #box (b) .star (c) div (d) .main
11. 11.True or false: #hero is a class selector. (a) False (b) True
12. 12.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <div id="hero"> (c) <h1 class="red"> (d) <h2>
15. 15.🎯 Which element does the selector .star style? (a) <h1 class="note"> (b) <p class="star"> (c) <p id="star"> (d) <p class="menu">
16. 16.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <span> (c) <h1 id="top"> (d) <div class="menu">
17. 17.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
18. 18.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
19. 19.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
20. 20.True or false: #end is an element selector. (a) False (b) True
21. 21.🎯 Which element does the selector .red style? (a) <span class="red"> (b) <p class="star"> (c) <span id="red"> (d) <span class="box">
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) .note (b) .big (c) #note (d) .hero
23. 23.🎯 Which CSS selector matches this element?
    <div class="red" id="hero">Hello</div> (a) .hero (b) span (c) .red (d) #red
24. 24.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
25. 25.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) span (b) .main (c) #logo (d) #box
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) .logo (b) h1 (c) .red (d) #big
27. 27.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
28. 28.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) .end (b) .red (c) p (d) #hero
29. 29.🎯 Which element does the selector li style? (a) <span class="big"> (b) <div> (c) <li class="big"> (d) <p id="hero">
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) h2 (b) #hero (c) #top (d) .hero
31. 31.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
32. 32.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
33. 33.🎯 Which element does the selector .star style? (a) <h1 class="star"> (b) <h1 class="menu"> (c) <h2 class="note"> (d) <h1 id="star">
34. 34.True or false: .note is an id selector. (a) True (b) False
35. 35.🎯 Which element does the selector li style? (a) <span class="box"> (b) <div> (c) <p id="logo"> (d) <li class="box">
36. 36.🎯 Which element does the selector .box style? (a) <p class="box"> (b) <p class="star"> (c) <h1 class="menu"> (d) <p id="box">
37. 37.🎯 Which element does the selector li style? (a) <span class="red"> (b) <li class="red"> (c) <p id="end"> (d) <div>
38. 38.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) 2 (d) any number
39. 39.True or false: .card is a class selector. (a) True (b) False
40. 40.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector

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