CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 189 · 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.True or false: h1 is an element selector. (a) False (b) True
2. 2.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
3. 3.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
4. 4.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
5. 5.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
6. 6.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <li id="intro"> (c) <h1> (d) <p class="menu">
7. 7.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
8. 8.🎯 Which CSS selector matches this element?
   <span class="big" id="top">Hello</span> (a) .red (b) .top (c) #intro (d) #top
9. 9.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="end"> (c) <span class="box"> (d) <h1 class="box">
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) .end (b) h2 (c) #red (d) #end
11. 11.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <div class="box"> (c) <div class="red"> (d) <span class="star">
12. 12.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
13. 13.🎯 Which element does the selector .menu style? (a) <li class="menu"> (b) <div class="big"> (c) <li class="note"> (d) <li id="menu">
14. 14.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
15. 15.True or false: #logo is an element selector. (a) False (b) True
16. 16.True or false: li is a class selector. (a) True (b) False
17. 17.True or false: .card is an element selector. (a) False (b) True
18. 18.True or false: .card is a class selector. (a) True (b) False
19. 19.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) .main (b) #logo (c) div (d) #main
20. 20.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) h2 (b) li (c) .menu (d) #star
21. 21.True or false: p is a class selector. (a) True (b) False
22. 22.🎯 Which element does the selector #end style? (a) <h1 id="hero"> (b) <h1 class="end"> (c) <h1 id="end"> (d) <h2 class="big">
23. 23.True or false: .big is a class selector. (a) False (b) True
24. 24.True or false: h1 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?
    <h1 class="menu" id="hero">Hello</h1> (a) #menu (b) .hero (c) .menu (d) #top
27. 27.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .intro (b) .red (c) .big (d) li
29. 29.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) .menu (b) #top (c) .hero (d) span
30. 30.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <h2 class="note"> (c) <li class="big"> (d) <h2 class="menu">
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) .top (b) h2 (c) #intro (d) .big
32. 32.True or false: #end is a class selector. (a) True (b) False
33. 33.True or false: li is an id selector. (a) True (b) False
34. 34.🎯 Can many elements share the same class? (a) Yes (b) No
35. 35.True or false: .star is an element selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) div (b) .box (c) .end (d) #box
37. 37.True or false: #main is a class selector. (a) True (b) False
38. 38.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) h1 (b) .top (c) .note (d) #note
39. 39.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
40. 40.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) h1 (b) p (c) #intro (d) .top

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