CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 529 · 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 div style? (a) <p class="note"> (b) <div class="note"> (c) <h1 id="hero"> (d) <span>
2. 2.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="big"> (c) <div class="red"> (d) <li class="note">
3. 3.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #
4. 4.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
5. 5.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <span class="star"> (c) <p class="note"> (d) <span id="star">
6. 6.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
7. 7.True or false: .menu is an id selector. (a) True (b) False
8. 8.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <div id="top"> (d) <h1 class="note">
10. 10.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) #top (b) .hero (c) .menu (d) #menu
11. 11.True or false: img is a class selector. (a) True (b) False
12. 12.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <div id="big"> (c) <span class="box"> (d) <div class="big">
13. 13.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 Which element does the selector div style? (a) <p class="star"> (b) <span> (c) <div class="star"> (d) <h1 id="intro">
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="hero">Hello</h1> (a) #menu (b) .hero (c) #top (d) .menu
17. 17.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) span (b) #note (c) #intro (d) .big
18. 18.🎯 Which element does the selector #logo style? (a) <div class="logo"> (b) <div id="end"> (c) <span class="big"> (d) <div id="logo">
19. 19.True or false: p is a class selector. (a) True (b) False
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="red" id="hero">Hello</h1> (a) #hero (b) #top (c) #red (d) .box
21. 21.🎯 Which sign starts a class selector? (a) & (b) @ (c) # (d) .
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .star (b) li (c) #top (d) div
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) .hero (b) .red (c) #big (d) .big
24. 24.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
25. 25.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
26. 26.True or false: .star is an id selector. (a) True (b) False
27. 27.True or false: .card is a class selector. (a) False (b) True
28. 28.🎯 Which element does the selector p style? (a) <li id="logo"> (b) <h1> (c) <h2 class="red"> (d) <p class="red">
29. 29.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #note (b) h1 (c) .big (d) p
30. 30.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <p id="hero"> (c) <p class="hero"> (d) <h1 class="big">
31. 31.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) #end (b) div (c) .logo (d) #logo
32. 32.True or false: #main is an element selector. (a) True (b) False
33. 33.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which element does the selector p style? (a) <li id="main"> (b) <h2 class="star"> (c) <p class="star"> (d) <h1>
35. 35.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) .logo (b) .star (c) #end (d) #logo
36. 36.True or false: #top is an id selector. (a) True (b) False
37. 37.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h2 class="box"> (c) <p class="box"> (d) <h1>
38. 38.True or false: body is an id selector. (a) False (b) True
39. 39.🎯 Which CSS selector matches this element?
    <li class="red" id="hero">Hello</li> (a) #hero (b) #red (c) div (d) .box
40. 40.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector

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