CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 916 · 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?
   <p class="menu" id="intro">Hello</p> (a) .intro (b) #menu (c) p (d) .note
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="hero">Hello</span> (a) #star (b) .hero (c) .star (d) p
3. 3.🎯 Which CSS selector matches this element?
   <li class="box" id="main">Hello</li> (a) .main (b) #main (c) .star (d) #box
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
6. 6.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
7. 7.🎯 Which element does the selector #top style? (a) <h2 class="top"> (b) <li class="big"> (c) <h2 id="intro"> (d) <h2 id="top">
8. 8.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
9. 9.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) .menu (b) div (c) #end (d) span
11. 11.True or false: img is an id selector. (a) False (b) True
12. 12.True or false: #hero is an id selector. (a) False (b) True
13. 13.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <li id="end"> (c) <h2 class="menu"> (d) <h1>
14. 14.True or false: .note is a class selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) .logo (b) #end (c) #big (d) h2
16. 16.🎯 Which element does the selector .big style? (a) <p class="box"> (b) <span id="big"> (c) <span class="red"> (d) <span class="big">
17. 17.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
18. 18.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) .box (b) #box (c) #main (d) .star
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) li (b) .big (c) #end (d) #hero
20. 20.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
21. 21.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #star (b) #hero (c) p (d) .end
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) .box (b) #logo (c) h1 (d) #red
23. 23.🎯 Which element does the selector li style? (a) <span class="box"> (b) <li class="box"> (c) <p id="intro"> (d) <div>
24. 24.🎯 Which element does the selector li style? (a) <span class="red"> (b) <div> (c) <li class="red"> (d) <p id="main">
25. 25.🎯 Which element does the selector #end style? (a) <span class="end"> (b) <span id="end"> (c) <span id="hero"> (d) <p class="star">
26. 26.True or false: .big is an element selector. (a) True (b) False
27. 27.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
28. 28.🎯 Which CSS selector matches this element?
    <div class="star" id="intro">Hello</div> (a) #star (b) .star (c) span (d) .menu
29. 29.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) p (b) h1 (c) .top (d) #note
30. 30.True or false: .menu is a class selector. (a) True (b) False
31. 31.🎯 Which element does the selector .red style? (a) <li class="red"> (b) <li id="red"> (c) <div class="star"> (d) <li class="box">
32. 32.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) li (b) .box (c) #box (d) .hero
34. 34.🎯 Which element does the selector .big style? (a) <li class="box"> (b) <h2 class="red"> (c) <h2 id="big"> (d) <h2 class="big">
35. 35.True or false: #top is an id selector. (a) True (b) False
36. 36.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
37. 37.🎯 Which element does the selector .menu style? (a) <span id="menu"> (b) <span class="note"> (c) <p class="big"> (d) <span class="menu">
38. 38.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li class="end"> (c) <div class="big"> (d) <li id="end">
39. 39.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) span (b) #main (c) #box (d) div
40. 40.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) #note (b) span (c) .note (d) #end

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