CSS Worksheet: Selectors Class and Id

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

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