CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 88 · 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 img? (a) an id selector (b) an element selector (c) a class selector
2. 2.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span id="box"> (c) <span class="star"> (d) <span class="box">
3. 3.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 Which CSS selector matches this element?
   <span class="red" id="top">Hello</span> (a) .red (b) #red (c) #intro (d) .box
5. 5.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 Which element does the selector p style? (a) <h2 class="box"> (b) <li id="intro"> (c) <p class="box"> (d) <h1>
7. 7.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="intro"> (c) <h1 id="top"> (d) <h2 class="note">
8. 8.🎯 Which element does the selector li style? (a) <li class="box"> (b) <div> (c) <p id="hero"> (d) <span class="box">
9. 9.🎯 Which element does the selector div style? (a) <p class="box"> (b) <span> (c) <div class="box"> (d) <h1 id="intro">
10. 10.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 class="note"> (c) <h2 class="big"> (d) <h2 id="note">
11. 11.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
12. 12.🎯 Which element does the selector .big style? (a) <li class="big"> (b) <li class="red"> (c) <div class="box"> (d) <li id="big">
13. 13.🎯 Which element does the selector p style? (a) <p class="note"> (b) <h2 class="note"> (c) <h1> (d) <li id="hero">
14. 14.True or false: .card is a class selector. (a) True (b) False
15. 15.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
17. 17.True or false: .big is an id selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <div class="red" id="main">Hello</div> (a) #red (b) span (c) #main (d) .main
19. 19.🎯 Which element does the selector .menu style? (a) <span class="note"> (b) <span id="menu"> (c) <p class="big"> (d) <span class="menu">
20. 20.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
21. 21.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .top (b) .note (c) #top (d) #menu
23. 23.🎯 Which element does the selector .red style? (a) <p class="box"> (b) <p id="red"> (c) <h1 class="star"> (d) <p class="red">
24. 24.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) #top (b) span (c) #hero (d) .note
25. 25.True or false: .note is a class selector. (a) False (b) True
26. 26.🎯 Which sign starts an id selector? (a) # (b) & (c) @ (d) .
27. 27.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) #red (b) .box (c) .red (d) p
28. 28.🎯 Which element does the selector .big style? (a) <li class="box"> (b) <h2 class="big"> (c) <h2 id="big"> (d) <h2 class="red">
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) h2 (b) #top (c) .top (d) #note
30. 30.🎯 Which element does the selector #top style? (a) <h1 class="red"> (b) <p class="top"> (c) <p id="intro"> (d) <p id="top">
31. 31.🎯 Which element does the selector .menu style? (a) <li class="menu"> (b) <li id="menu"> (c) <div class="big"> (d) <li class="note">
32. 32.True or false: .big is an element selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) #logo (b) li (c) .main (d) .star
34. 34.True or false: h1 is an id selector. (a) True (b) False
35. 35.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) #star (b) p (c) .top (d) .menu
36. 36.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) .star (b) .logo (c) #box (d) li
37. 37.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
38. 38.True or false: h1 is a class selector. (a) False (b) True
39. 39.True or false: .note is an element selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) #box (b) .star (c) p (d) #logo

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