CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 319 · 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 #end style? (a) <h2 class="note"> (b) <h1 id="hero"> (c) <h1 class="end"> (d) <h1 id="end">
2. 2.🎯 Which CSS selector matches this element?
   <span class="box" id="logo">Hello</span> (a) .logo (b) .box (c) .star (d) #box
3. 3.🎯 Which CSS selector matches this element?
   <li class="red" id="main">Hello</li> (a) .box (b) #logo (c) .main (d) .red
4. 4.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
5. 5.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <p class="red"> (c) <h1> (d) <h2 class="red">
6. 6.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
7. 7.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="end"> (c) <div class="menu"> (d) <h2 class="menu">
8. 8.True or false: li is an element selector. (a) False (b) True
9. 9.🎯 Can many elements share the same class? (a) No (b) Yes
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) h1 (b) .star (c) #intro (d) h2
11. 11.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <span id="logo"> (c) <h2 class="big"> (d) <li>
12. 12.🎯 Which element does the selector .box style? (a) <h2 class="menu"> (b) <h1 id="box"> (c) <h1 class="star"> (d) <h1 class="box">
13. 13.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) #end (b) .end (c) #star (d) #hero
14. 14.🎯 Which element does the selector li style? (a) <li class="big"> (b) <p id="main"> (c) <span class="big"> (d) <div>
15. 15.True or false: .note is an element selector. (a) False (b) True
16. 16.True or false: h1 is an element selector. (a) False (b) True
17. 17.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #big (b) div (c) .big (d) .red
18. 18.🎯 Which CSS selector matches this element?
    <p class="big" id="logo">Hello</p> (a) #end (b) #big (c) .red (d) #logo
19. 19.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .menu (b) #menu (c) .note (d) .top
20. 20.True or false: h1 is a class selector. (a) True (b) False
21. 21.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) #menu (b) .main (c) #logo (d) #main
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) #menu (b) #logo (c) .note (d) .menu
23. 23.🎯 Which element does the selector #end style? (a) <h2 id="end"> (b) <h2 id="hero"> (c) <li class="big"> (d) <h2 class="end">
24. 24.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) #menu (b) div (c) #hero (d) .hero
25. 25.🎯 Which element does the selector #intro style? (a) <span id="intro"> (b) <span class="intro"> (c) <span id="main"> (d) <p class="red">
26. 26.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
27. 27.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <div class="red"> (c) <li class="note"> (d) <li class="big">
28. 28.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <p class="note"> (c) <span class="star"> (d) <span id="star">
29. 29.True or false: #hero is an id selector. (a) True (b) False
30. 30.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
31. 31.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) h1 (b) #intro (c) #top (d) #red
32. 32.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) span (b) .intro (c) .big (d) #main
33. 33.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
34. 34.🎯 Which element does the selector #top style? (a) <li id="intro"> (b) <li id="top"> (c) <li class="top"> (d) <div class="big">
35. 35.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <h1 class="red"> (c) <p> (d) <span class="red">
36. 36.True or false: #main is a class selector. (a) True (b) False
37. 37.🎯 Which element does the selector #intro style? (a) <span class="box"> (b) <div class="intro"> (c) <div id="main"> (d) <div id="intro">
38. 38.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) #red (b) li (c) #main (d) h2
40. 40.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="logo"> (c) <li class="note"> (d) <h1 class="note">

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