CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 604 · 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 element does the selector p style? (a) <p class="note"> (b) <h1> (c) <h2 class="note"> (d) <li id="hero">
2. 2.🎯 Can many elements share the same class? (a) No (b) Yes
3. 3.🎯 Which element does the selector #end style? (a) <h1 id="hero"> (b) <h1 id="end"> (c) <h2 class="note"> (d) <h1 class="end">
4. 4.🎯 Which element does the selector h2 style? (a) <div class="red"> (b) <span id="end"> (c) <li> (d) <h2 class="red">
5. 5.🎯 Which element does the selector #main style? (a) <h1 class="star"> (b) <p class="main"> (c) <p id="logo"> (d) <p id="main">
6. 6.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div id="box"> (c) <div class="box"> (d) <div class="star">
7. 7.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
8. 8.🎯 Which CSS selector matches this element?
   <span class="box" id="main">Hello</span> (a) .star (b) p (c) .box (d) #logo
9. 9.🎯 Which CSS selector matches this element?
   <li class="red" id="top">Hello</li> (a) .top (b) #top (c) div (d) #intro
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) h1 (b) h2 (c) #logo (d) #big
11. 11.🎯 Which CSS selector matches this element?
    <li class="box" id="intro">Hello</li> (a) .intro (b) #main (c) #box (d) #intro
12. 12.🎯 Which element does the selector #hero style? (a) <span class="star"> (b) <div id="hero"> (c) <div class="hero"> (d) <div id="top">
13. 13.True or false: .big is a class selector. (a) True (b) False
14. 14.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) #end (b) p (c) h1 (d) .logo
15. 15.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) any number (d) 5
16. 16.🎯 Which CSS selector matches this element?
    <li class="big" id="hero">Hello</li> (a) #hero (b) .red (c) #top (d) .hero
17. 17.True or false: img is an element selector. (a) False (b) True
18. 18.🎯 Which element does the selector .red style? (a) <div id="red"> (b) <span class="star"> (c) <div class="box"> (d) <div class="red">
19. 19.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) .big (c) .hero (d) .red
20. 20.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
21. 21.True or false: p is an element selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) .top (b) #box (c) #intro (d) .box
23. 23.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <span> (c) <div class="star"> (d) <p class="star">
24. 24.True or false: .card is an id selector. (a) True (b) False
25. 25.🎯 Which element does the selector .menu style? (a) <div class="note"> (b) <span class="big"> (c) <div id="menu"> (d) <div class="menu">
26. 26.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #logo (b) p (c) .big (d) .note
27. 27.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
28. 28.🎯 Which CSS selector matches this element?
    <li class="big" id="hero">Hello</li> (a) .red (b) div (c) #top (d) li
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1> (a) .main (b) #star (c) h1 (d) .menu
30. 30.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
32. 32.🎯 Which CSS selector matches this element?
    <div class="big" id="top">Hello</div> (a) #intro (b) .top (c) .big (d) #big
33. 33.True or false: .note is a class selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) .note (b) #end (c) .menu (d) #menu
35. 35.🎯 Which CSS selector matches this element?
    <span class="big" id="intro">Hello</span> (a) .red (b) p (c) .intro (d) .big
36. 36.🎯 Which element does the selector #intro style? (a) <span class="note"> (b) <div id="main"> (c) <div id="intro"> (d) <div class="intro">
37. 37.🎯 Which CSS selector matches this element?
    <p class="menu" id="end">Hello</p> (a) .menu (b) .note (c) h1 (d) #menu
38. 38.True or false: .note is an element selector. (a) True (b) False
39. 39.True or false: #main is an id selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) div (b) .red (c) #logo (d) li

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