CSS Worksheet: Selectors Class and Id

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

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