CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 683 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which CSS selector matches this element?
   <p class="box" id="logo">Hello</p> (a) p (b) .logo (c) #end (d) h1
3. 3.🎯 Which element does the selector .menu style? (a) <span class="menu"> (b) <p class="big"> (c) <span class="note"> (d) <span id="menu">
4. 4.🎯 Which sign starts an id selector? (a) @ (b) . (c) # (d) &
5. 5.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <p> (c) <h1 class="star"> (d) <span class="star">
6. 6.True or false: #top is a class selector. (a) True (b) False
7. 7.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
8. 8.True or false: p is a class selector. (a) False (b) True
9. 9.True or false: #top is an id selector. (a) True (b) False
10. 10.🎯 Which element does the selector #main style? (a) <h2 id="main"> (b) <h2 id="logo"> (c) <h2 class="main"> (d) <li class="note">
11. 11.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
12. 12.True or false: .card is a class selector. (a) True (b) False
13. 13.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
14. 14.🎯 Which CSS selector matches this element?
    <span class="star" id="main">Hello</span> (a) p (b) .menu (c) #logo (d) .star
15. 15.True or false: #end is a class selector. (a) True (b) False
16. 16.True or false: .star is a class selector. (a) True (b) False
17. 17.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 1 (d) 5
18. 18.🎯 Which element does the selector p style? (a) <li id="main"> (b) <h2 class="note"> (c) <h1> (d) <p class="note">
19. 19.🎯 Which element does the selector #logo style? (a) <span id="logo"> (b) <p class="red"> (c) <span class="logo"> (d) <span id="end">
20. 20.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
21. 21.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
22. 22.🎯 Which element does the selector li style? (a) <span class="note"> (b) <li class="note"> (c) <p id="hero"> (d) <div>
23. 23.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
24. 24.True or false: #main is a class selector. (a) False (b) True
25. 25.True or false: .menu is a class selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) div (b) #star (c) .menu (d) .end
27. 27.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
28. 28.True or false: .big is a class selector. (a) False (b) True
29. 29.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="top"> (c) <h1 id="intro"> (d) <h2 class="note">
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="box" id="intro">Hello</h1> (a) .intro (b) h2 (c) #box (d) #intro
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) .red (b) .main (c) #main (d) #big
32. 32.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) #red (b) .red (c) .hero (d) .box
33. 33.True or false: h1 is a class selector. (a) True (b) False
34. 34.🎯 Which element does the selector #hero style? (a) <p id="hero"> (b) <h1 class="big"> (c) <p id="top"> (d) <p class="hero">
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) .hero (b) #box (c) li (d) #hero
36. 36.🎯 Which element does the selector p style? (a) <p class="box"> (b) <h1> (c) <li id="main"> (d) <h2 class="box">
37. 37.True or false: .note is an element selector. (a) False (b) True
38. 38.True or false: h1 is an id selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) li (b) #end (c) div (d) .logo
40. 40.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) #end (b) #logo (c) p (d) .logo

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