CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 394 · 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 sign starts an id selector? (a) & (b) . (c) # (d) @
2. 2.True or false: .note is a class selector. (a) True (b) False
3. 3.🎯 Which sign starts a class selector? (a) @ (b) . (c) # (d) &
4. 4.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <h1 class="note"> (d) <div id="top">
5. 5.True or false: li is a class selector. (a) False (b) True
6. 6.🎯 Which element does the selector span style? (a) <h1 class="box"> (b) <span class="box"> (c) <h2 id="main"> (d) <p>
7. 7.🎯 Which CSS selector matches this element?
   <div class="star" id="intro">Hello</div> (a) div (b) span (c) #main (d) .menu
8. 8.🎯 Which element does the selector li style? (a) <p id="logo"> (b) <div> (c) <span class="box"> (d) <li class="box">
9. 9.🎯 Which CSS selector matches this element?
   <span class="note" id="top">Hello</span> (a) .big (b) #note (c) .note (d) #intro
10. 10.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
11. 11.True or false: body is an element selector. (a) True (b) False
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) #main (b) .box (c) h1 (d) .main
13. 13.🎯 Which element does the selector div style? (a) <p class="box"> (b) <div class="box"> (c) <h1 id="main"> (d) <span>
14. 14.True or false: .note is an element selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) #box (b) div (c) .logo (d) #end
16. 16.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div id="big"> (c) <div class="big"> (d) <div class="red">
17. 17.🎯 Which CSS selector matches this element?
    <li class="red" id="main">Hello</li> (a) #red (b) #logo (c) li (d) div
18. 18.🎯 Which element does the selector h2 style? (a) <div class="note"> (b) <li> (c) <h2 class="note"> (d) <span id="logo">
19. 19.🎯 Can many elements share the same class? (a) No (b) Yes
20. 20.True or false: #end is an id selector. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="hero">Hello</h1> (a) h2 (b) #hero (c) .hero (d) #menu
22. 22.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) h1 (b) #menu (c) #intro (d) h2
23. 23.True or false: .menu is a class selector. (a) False (b) True
24. 24.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
25. 25.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
26. 26.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
27. 27.True or false: li is an element selector. (a) False (b) True
28. 28.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) .star (b) .box (c) #box (d) .main
29. 29.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) .star (b) .logo (c) .menu (d) li
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) .top (b) #menu (c) li (d) .menu
32. 32.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <h2 class="big"> (d) <p class="big">
33. 33.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <li class="star"> (c) <span class="star"> (d) <div>
34. 34.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="star"> (c) <li id="hero"> (d) <p class="star">
35. 35.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <p id="intro"> (c) <div> (d) <li class="menu">
36. 36.🎯 Which element does the selector li style? (a) <span class="big"> (b) <div> (c) <li class="big"> (d) <p id="hero">
37. 37.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
38. 38.True or false: img is an element selector. (a) False (b) True
39. 39.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <h1 class="menu"> (c) <p id="box"> (d) <p class="box">
40. 40.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h1> (c) <p class="red"> (d) <h2 class="red">

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