CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 677 · 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 sign starts a class selector? (a) @ (b) & (c) # (d) .
2. 2.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
3. 3.🎯 Which CSS selector matches this element?
   <p class="big" id="hero">Hello</p> (a) #top (b) .big (c) h1 (d) .red
4. 4.True or false: .note is an element selector. (a) True (b) False
5. 5.🎯 Which element does the selector #logo style? (a) <h2 class="star"> (b) <h1 class="logo"> (c) <h1 id="end"> (d) <h1 id="logo">
6. 6.🎯 Which CSS selector matches this element?
   <div class="big" id="top">Hello</div> (a) .top (b) #big (c) .red (d) div
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="big" id="top">Hello</h1> (a) #big (b) h2 (c) #intro (d) h1
8. 8.True or false: .card is an element selector. (a) False (b) True
9. 9.🎯 Which CSS selector matches this element?
   <p class="star" id="intro">Hello</p> (a) .intro (b) #star (c) .star (d) #main
10. 10.True or false: #logo is a class selector. (a) False (b) True
11. 11.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <h1 id="top"> (c) <span> (d) <p class="menu">
12. 12.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
14. 14.True or false: .menu is an element selector. (a) True (b) False
15. 15.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) p (b) #big (c) .main (d) #main
16. 16.🎯 Which element does the selector #hero style? (a) <span class="hero"> (b) <span id="hero"> (c) <span id="top"> (d) <p class="big">
17. 17.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which element does the selector .menu style? (a) <p id="menu"> (b) <p class="menu"> (c) <p class="note"> (d) <h1 class="big">
19. 19.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
20. 20.🎯 What kind of selector is #main? (a) an id selector (b) a class selector (c) an element selector
21. 21.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
22. 22.🎯 Which element does the selector h2 style? (a) <h2 class="star"> (b) <li> (c) <span id="top"> (d) <div class="star">
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .note (b) .top (c) h1 (d) #menu
24. 24.True or false: .star is an id selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) .hero (b) #menu (c) p (d) h1
26. 26.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) #intro (b) h1 (c) .red (d) .big
27. 27.True or false: #hero is an element selector. (a) True (b) False
28. 28.True or false: #end is a class selector. (a) True (b) False
29. 29.True or false: .menu is an id selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <li class="box" id="end">Hello</li> (a) div (b) #box (c) #end (d) .end
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .intro (b) .menu (c) #menu (d) h2
32. 32.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .main (b) #main (c) span (d) #logo
33. 33.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) .menu (b) .top (c) p (d) #top
34. 34.True or false: body is an id selector. (a) True (b) False
35. 35.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
36. 36.True or false: p is an element selector. (a) False (b) True
37. 37.🎯 Which element does the selector p style? (a) <h2 class="box"> (b) <h1> (c) <p class="box"> (d) <li id="end">
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="big" id="hero">Hello</h2> (a) .red (b) li (c) #hero (d) #top
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="main">Hello</h2> (a) #menu (b) .note (c) .main (d) #main
40. 40.🎯 Which element does the selector #main style? (a) <span class="menu"> (b) <div id="logo"> (c) <div id="main"> (d) <div class="main">

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