CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 969 · 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.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
2. 2.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="logo"> (c) <div class="menu"> (d) <h2 class="menu">
3. 3.🎯 Which CSS selector matches this element?
   <span class="note" id="top">Hello</span> (a) .big (b) #intro (c) .note (d) .top
4. 4.🎯 Which element does the selector .note style? (a) <div class="big"> (b) <span class="red"> (c) <div class="note"> (d) <div id="note">
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 sign starts an id selector? (a) # (b) . (c) & (d) @
7. 7.🎯 Which CSS selector matches this element?
   <li class="box" id="logo">Hello</li> (a) #logo (b) #end (c) div (d) .logo
8. 8.🎯 Which CSS selector matches this element?
   <li class="box" id="main">Hello</li> (a) .box (b) #logo (c) .main (d) .star
9. 9.🎯 Which element does the selector #end style? (a) <h2 id="end"> (b) <li class="star"> (c) <h2 id="hero"> (d) <h2 class="end">
10. 10.🎯 Which sign starts a class selector? (a) . (b) & (c) # (d) @
11. 11.🎯 Can many elements share the same class? (a) No (b) Yes
12. 12.🎯 Which CSS selector matches this element?
    <span class="red" id="end">Hello</span> (a) #hero (b) #red (c) .end (d) span
13. 13.True or false: .big is an element selector. (a) False (b) True
14. 14.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) .end (b) #note (c) #hero (d) h1
16. 16.True or false: body is a class selector. (a) True (b) False
17. 17.True or false: #logo is an id selector. (a) False (b) True
18. 18.True or false: h1 is a class selector. (a) False (b) True
19. 19.🎯 Which element does the selector .star style? (a) <h1 class="star"> (b) <h1 id="star"> (c) <h2 class="note"> (d) <h1 class="menu">
20. 20.🎯 Which CSS selector matches this element?
    <li class="menu" id="top">Hello</li> (a) li (b) div (c) #menu (d) .note
21. 21.🎯 Which CSS selector matches this element?
    <h2 class="note" id="hero">Hello</h2> (a) #top (b) li (c) #hero (d) .big
22. 22.True or false: #top is a class selector. (a) False (b) True
23. 23.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .menu (b) p (c) span (d) #star
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) .box (b) h2 (c) li (d) #red
25. 25.🎯 Which element does the selector h2 style? (a) <div class="star"> (b) <li> (c) <span id="logo"> (d) <h2 class="star">
26. 26.True or false: .big is an id selector. (a) False (b) True
27. 27.True or false: li is an id selector. (a) True (b) False
28. 28.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) #menu (b) .note (c) .menu (d) #top
30. 30.True or false: #end is a class selector. (a) True (b) False
31. 31.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) .note (b) #logo (c) .logo (d) #menu
32. 32.True or false: body is an element selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="box" id="end">Hello</h2> (a) .star (b) .end (c) #hero (d) .box
34. 34.🎯 Which element does the selector #intro style? (a) <h1 id="intro"> (b) <h1 id="main"> (c) <h1 class="intro"> (d) <h2 class="big">
35. 35.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) .box (b) #red (c) span (d) p
36. 36.True or false: .card is a class selector. (a) False (b) True
37. 37.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) .red (b) #big (c) #intro (d) #top
38. 38.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
39. 39.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) p (b) .menu (c) span (d) #intro
40. 40.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector

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