CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 94 · 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 img? (a) a class selector (b) an element selector (c) an id selector
2. 2.True or false: .menu is a class selector. (a) False (b) True
3. 3.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
4. 4.🎯 Which CSS selector matches this element?
   <span class="box" id="end">Hello</span> (a) p (b) .end (c) #box (d) span
5. 5.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="intro">Hello</h1> (a) #intro (b) #main (c) .note (d) h2
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
8. 8.🎯 Which CSS selector matches this element?
   <p class="big" id="logo">Hello</p> (a) .logo (b) .red (c) p (d) h1
9. 9.🎯 Can many elements share the same class? (a) No (b) Yes
10. 10.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) #main (b) .intro (c) .red (d) span
11. 11.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) #menu (b) #main (c) p (d) span
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) h2 (b) li (c) #red (d) .box
13. 13.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
14. 14.True or false: .card is an id selector. (a) True (b) False
15. 15.🎯 Which element does the selector .note style? (a) <li class="big"> (b) <li id="note"> (c) <li class="note"> (d) <div class="red">
16. 16.🎯 Which element does the selector .menu style? (a) <li class="note"> (b) <li class="menu"> (c) <div class="big"> (d) <li id="menu">
17. 17.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
18. 18.True or false: .menu is an id selector. (a) False (b) True
19. 19.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <h2> (c) <div id="intro"> (d) <h1 class="red">
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) .top (b) .menu (c) h1 (d) #intro
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) h2 (b) .star (c) #box (d) h1
22. 22.🎯 Which element does the selector li style? (a) <p id="end"> (b) <li class="big"> (c) <div> (d) <span class="big">
23. 23.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <span class="top"> (c) <p class="star"> (d) <span id="top">
24. 24.True or false: h1 is an id selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <div class="note" id="hero">Hello</div> (a) .big (b) #top (c) div (d) #note
26. 26.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) #hero (b) #top (c) #red (d) .box
27. 27.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) .red (b) .hero (c) #hero (d) #big
28. 28.🎯 Which element does the selector li style? (a) <p id="end"> (b) <div> (c) <span class="box"> (d) <li class="box">
29. 29.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <p class="menu"> (c) <h1 id="hero"> (d) <span>
30. 30.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) h1 (b) .star (c) #box (d) h2
31. 31.True or false: p is a class selector. (a) False (b) True
32. 32.True or false: .card is a class selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) #star (b) #intro (c) .menu (d) .star
34. 34.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) .main (b) #main (c) #note (d) #logo
35. 35.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .note (b) .top (c) #intro (d) p
36. 36.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <span class="menu"> (c) <div id="main"> (d) <div class="main">
37. 37.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
38. 38.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) #intro (b) .menu (c) #star (d) .star
40. 40.🎯 Which element does the selector #end style? (a) <div class="end"> (b) <div id="end"> (c) <span class="star"> (d) <div id="hero">

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