CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 273 · 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?
   <div class="big" id="main">Hello</div> (a) .main (b) #big (c) .big (d) span
2. 2.🎯 Which CSS selector matches this element?
   <span class="menu" id="main">Hello</span> (a) span (b) .note (c) .main (d) p
3. 3.🎯 Which element does the selector span style? (a) <p> (b) <span class="big"> (c) <h1 class="big"> (d) <h2 id="main">
4. 4.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
6. 6.🎯 Which element does the selector .big style? (a) <span class="red"> (b) <span id="big"> (c) <p class="box"> (d) <span class="big">
7. 7.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="note"> (c) <div class="red"> (d) <li class="big">
9. 9.🎯 Which element does the selector .box style? (a) <span class="star"> (b) <span id="box"> (c) <p class="menu"> (d) <span class="box">
10. 10.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) p (b) #menu (c) #intro (d) .note
11. 11.True or false: img is an element selector. (a) True (b) False
12. 12.True or false: #main is an element selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #top (b) .top (c) #intro (d) .box
14. 14.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <p class="note"> (c) <h1 class="red"> (d) <p class="big">
15. 15.True or false: .card is an element selector. (a) True (b) False
16. 16.🎯 Which element does the selector #main style? (a) <li class="main"> (b) <li id="main"> (c) <li id="logo"> (d) <div class="star">
17. 17.True or false: .big is a class selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) #box (b) .star (c) li (d) div
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) #box (b) #top (c) .star (d) #hero
20. 20.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h2 class="menu"> (c) <h1 id="hero"> (d) <h1 id="top">
21. 21.True or false: body is an element selector. (a) True (b) False
22. 22.🎯 Which element does the selector #logo style? (a) <div id="end"> (b) <div id="logo"> (c) <div class="logo"> (d) <span class="note">
23. 23.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
24. 24.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) #note (b) #main (c) .big (d) #intro
25. 25.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
26. 26.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) #top (b) #note (c) .big (d) .top
27. 27.True or false: #end is an id selector. (a) False (b) True
28. 28.True or false: p is a class selector. (a) True (b) False
29. 29.True or false: #logo is an id selector. (a) True (b) False
30. 30.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
31. 31.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
32. 32.🎯 Which sign starts a class selector? (a) @ (b) & (c) . (d) #
33. 33.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div> (a) #main (b) .menu (c) #intro (d) #star
34. 34.True or false: body is a class selector. (a) True (b) False
35. 35.True or false: .menu is an element selector. (a) False (b) True
36. 36.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
37. 37.True or false: .card is an id selector. (a) False (b) True
38. 38.🎯 Which element does the selector p style? (a) <h1> (b) <p class="note"> (c) <h2 class="note"> (d) <li id="top">
39. 39.🎯 Which element does the selector #logo style? (a) <li class="note"> (b) <h2 id="logo"> (c) <h2 id="end"> (d) <h2 class="logo">
40. 40.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) #intro (b) #main (c) p (d) #big

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