CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 491 · 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?
   <li class="note" id="hero">Hello</li> (a) #hero (b) #top (c) div (d) .big
2. 2.🎯 Which CSS selector matches this element?
   <div class="red" id="end">Hello</div> (a) .box (b) #hero (c) span (d) .red
3. 3.🎯 Which CSS selector matches this element?
   <span class="box" id="end">Hello</span> (a) #end (b) #box (c) .end (d) .star
4. 4.🎯 Which CSS selector matches this element?
   <h2 class="note" id="intro">Hello</h2> (a) li (b) #intro (c) .big (d) #main
5. 5.True or false: body is an element selector. (a) False (b) True
6. 6.🎯 Which CSS selector matches this element?
   <p class="big" id="end">Hello</p> (a) p (b) #big (c) .end (d) h1
7. 7.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
8. 8.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
9. 9.True or false: .big is an element selector. (a) False (b) True
10. 10.True or false: h1 is an id selector. (a) True (b) False
11. 11.True or false: body is a class selector. (a) True (b) False
12. 12.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) #hero (b) .menu (c) #end (d) .end
13. 13.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) #end (b) .note (c) #note (d) span
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) .note (b) h2 (c) #hero (d) .big
15. 15.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) #intro (b) .top (c) .box (d) .star
16. 16.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
17. 17.True or false: li is an element selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) .top (b) #intro (c) h1 (d) p
19. 19.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) #red (b) span (c) .box (d) .intro
20. 20.True or false: .menu is a class selector. (a) True (b) False
21. 21.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) #star (b) #top (c) .menu (d) h1
22. 22.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <span class="top"> (c) <span id="top"> (d) <p class="star">
23. 23.🎯 Which element does the selector .box style? (a) <li class="star"> (b) <div class="menu"> (c) <li class="box"> (d) <li id="box">
24. 24.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) .note (b) .intro (c) #main (d) span
25. 25.True or false: .big is a class selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) #note (b) .big (c) #intro (d) .intro
27. 27.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <div id="top"> (c) <span class="menu"> (d) <div id="intro">
28. 28.🎯 Which element does the selector #main style? (a) <p id="logo"> (b) <p class="main"> (c) <h1 class="box"> (d) <p id="main">
29. 29.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #big (b) .hero (c) .red (d) .big
30. 30.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
31. 31.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) .main (b) #logo (c) .star (d) span
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) .menu (b) #intro (c) #menu (d) .note
33. 33.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
34. 34.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <span class="intro"> (c) <p class="red"> (d) <span id="intro">
35. 35.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
36. 36.True or false: p is a class selector. (a) True (b) False
37. 37.True or false: #logo is an id selector. (a) False (b) True
38. 38.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
39. 39.True or false: .note is an id selector. (a) False (b) True
40. 40.🎯 Which element does the selector .star style? (a) <li class="menu"> (b) <div class="note"> (c) <li id="star"> (d) <li class="star">

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