CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 334 · 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 element does the selector .note style? (a) <span id="note"> (b) <span class="note"> (c) <p class="red"> (d) <span class="big">
2. 2.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
3. 3.True or false: #logo is an element selector. (a) False (b) True
4. 4.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
5. 5.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
6. 6.🎯 Which CSS selector matches this element?
   <span class="red" id="main">Hello</span> (a) .box (b) .red (c) .main (d) #red
7. 7.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p class="star"> (c) <p id="star"> (d) <h1 class="note">
8. 8.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
9. 9.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
10. 10.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
11. 11.True or false: #end is an id selector. (a) False (b) True
12. 12.🎯 Which element does the selector li style? (a) <div> (b) <span class="star"> (c) <p id="end"> (d) <li class="star">
13. 13.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h1 id="top"> (c) <h1 id="hero"> (d) <h2 class="red">
14. 14.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) #end (b) #big (c) .big (d) .red
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) #end (b) #logo (c) h2 (d) .logo
17. 17.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) h1 (b) #logo (c) .main (d) .box
18. 18.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <p class="big"> (c) <span id="logo"> (d) <span class="logo">
19. 19.🎯 Which element does the selector .big style? (a) <h1 class="big"> (b) <h1 id="big"> (c) <h1 class="red"> (d) <h2 class="box">
20. 20.🎯 Can many elements share the same class? (a) Yes (b) No
21. 21.🎯 Which CSS selector matches this element?
    <h2 class="box" id="main">Hello</h2> (a) .star (b) li (c) #box (d) h2
22. 22.True or false: #hero is an id selector. (a) True (b) False
23. 23.🎯 Which element does the selector .big style? (a) <p id="big"> (b) <p class="big"> (c) <p class="red"> (d) <h1 class="box">
24. 24.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
25. 25.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
26. 26.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) .box (b) h2 (c) .main (d) #main
28. 28.🎯 Which CSS selector matches this element?
    <p class="big" id="logo">Hello</p> (a) #end (b) .red (c) #big (d) #logo
29. 29.🎯 Which element does the selector span style? (a) <p> (b) <span class="star"> (c) <h2 id="end"> (d) <h1 class="star">
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) h2 (b) .big (c) .note (d) #note
31. 31.🎯 Which element does the selector div style? (a) <span> (b) <p class="star"> (c) <h1 id="end"> (d) <div class="star">
32. 32.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
33. 33.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) h1 (b) .top (c) .menu (d) #top
34. 34.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
35. 35.True or false: p is a class selector. (a) True (b) False
36. 36.True or false: h1 is a class selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <span class="menu" id="end">Hello</span> (a) .end (b) #end (c) .note (d) #hero
38. 38.True or false: img is an id selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) .note (b) #note (c) .end (d) #hero
40. 40.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) .box (b) #box (c) .star (d) div

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