CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 289 · 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 #logo? (a) a class selector (b) an element selector (c) an id selector
2. 2.True or false: #end is an element selector. (a) True (b) False
3. 3.True or false: #logo is an id selector. (a) False (b) True
4. 4.True or false: #main is an id selector. (a) False (b) True
5. 5.🎯 Which CSS selector matches this element?
   <div class="red" id="logo">Hello</div> (a) span (b) .box (c) #logo (d) #end
6. 6.🎯 Which element does the selector .box style? (a) <h1 class="star"> (b) <h1 class="box"> (c) <h1 id="box"> (d) <h2 class="menu">
7. 7.🎯 Which sign starts an id selector? (a) # (b) & (c) @ (d) .
8. 8.True or false: .card is a class selector. (a) False (b) True
9. 9.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h2 class="red"> (c) <h1 id="hero"> (d) <h1 id="top">
11. 11.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) #intro (b) #red (c) .red (d) .box
13. 13.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which sign starts a class selector? (a) @ (b) & (c) . (d) #
15. 15.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) .red (b) #end (c) #logo (d) .logo
17. 17.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
18. 18.🎯 Can many elements share the same class? (a) Yes (b) No
19. 19.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) h1 (b) p (c) #intro (d) .top
20. 20.🎯 Which element does the selector span style? (a) <h1 class="red"> (b) <h2 id="intro"> (c) <p> (d) <span class="red">
21. 21.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) p (b) h1 (c) .end (d) #box
22. 22.🎯 Which element does the selector #end style? (a) <span class="star"> (b) <div class="end"> (c) <div id="hero"> (d) <div id="end">
23. 23.True or false: #main is a class selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="big" id="top">Hello</h1> (a) .top (b) #intro (c) .red (d) h1
25. 25.True or false: img is a class selector. (a) False (b) True
26. 26.True or false: .star is an element selector. (a) False (b) True
27. 27.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <li class="big"> (c) <h2> (d) <h1 class="big">
28. 28.🎯 Which element does the selector .box style? (a) <h2 class="star"> (b) <h2 id="box"> (c) <h2 class="box"> (d) <li class="menu">
29. 29.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) h1 (b) .end (c) .note (d) #note
30. 30.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
31. 31.True or false: img is an element selector. (a) False (b) True
32. 32.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) .star (b) #star (c) #hero (d) .end
33. 33.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <p class="menu"> (c) <h1> (d) <h2 class="menu">
34. 34.🎯 Which CSS selector matches this element?
    <p class="big" id="end">Hello</p> (a) .red (b) #end (c) #big (d) #hero
35. 35.True or false: #top is an id selector. (a) False (b) True
36. 36.🎯 Which element does the selector li style? (a) <p id="top"> (b) <span class="big"> (c) <li class="big"> (d) <div>
37. 37.True or false: p is an element selector. (a) True (b) False
38. 38.🎯 Which element does the selector .note style? (a) <h2 class="note"> (b) <h2 class="big"> (c) <h2 id="note"> (d) <li class="red">
39. 39.True or false: .card is an id selector. (a) False (b) True
40. 40.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector

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