CSS Worksheet: Selectors Class and Id

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

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