CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 457 · 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 .note? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
3. 3.True or false: h1 is an element selector. (a) True (b) False
4. 4.True or false: #hero is a class selector. (a) False (b) True
5. 5.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <h2 id="intro"> (c) <span class="big"> (d) <p>
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="big" id="top">Hello</h2> (a) #intro (b) #big (c) .red (d) .big
8. 8.🎯 Which CSS selector matches this element?
   <p class="box" id="intro">Hello</p> (a) #intro (b) .intro (c) #main (d) .star
9. 9.True or false: #hero is an element selector. (a) True (b) False
10. 10.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <li class="note"> (c) <h2 class="star"> (d) <h2 class="menu">
11. 11.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
12. 12.🎯 Which element does the selector p style? (a) <p class="red"> (b) <h1> (c) <li id="intro"> (d) <h2 class="red">
13. 13.True or false: body is an element selector. (a) True (b) False
14. 14.🎯 Which element does the selector #hero style? (a) <li class="hero"> (b) <div class="big"> (c) <li id="hero"> (d) <li id="top">
15. 15.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) .main (b) h1 (c) p (d) #logo
16. 16.🎯 Can many elements share the same class? (a) Yes (b) No
17. 17.🎯 Which element does the selector #logo style? (a) <h1 id="end"> (b) <h2 class="big"> (c) <h1 id="logo"> (d) <h1 class="logo">
18. 18.🎯 Which element does the selector p style? (a) <h1> (b) <p class="note"> (c) <li id="hero"> (d) <h2 class="note">
19. 19.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
20. 20.True or false: .note is an id selector. (a) True (b) False
21. 21.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <h2> (c) <div id="hero"> (d) <h1 class="star">
22. 22.🎯 Which element does the selector .menu style? (a) <li class="big"> (b) <h2 id="menu"> (c) <h2 class="note"> (d) <h2 class="menu">
23. 23.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 Which CSS selector matches this element?
    <span class="star" id="main">Hello</span> (a) .menu (b) .main (c) #star (d) span
25. 25.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <p class="box"> (c) <span class="big"> (d) <span class="red">
26. 26.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <h1 class="red"> (c) <p id="top"> (d) <p class="top">
27. 27.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) #top (b) p (c) .star (d) #box
28. 28.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) #box (b) .end (c) #hero (d) li
29. 29.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
30. 30.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #big (b) .big (c) .end (d) .red
31. 31.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
32. 32.True or false: img is an id selector. (a) False (b) True
33. 33.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #hero (b) #end (c) .menu (d) #star
35. 35.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) p (b) #hero (c) .end (d) #end
36. 36.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="hero"> (c) <div class="menu"> (d) <p class="menu">
38. 38.True or false: .note is a class selector. (a) False (b) True
39. 39.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
40. 40.🎯 Which element does the selector #hero style? (a) <h2 id="hero"> (b) <li class="red"> (c) <h2 class="hero"> (d) <h2 id="top">

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