CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 933 · 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 CSS selector matches this element?
   <li class="box" id="top">Hello</li> (a) #intro (b) #box (c) div (d) li
2. 2.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
3. 3.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <p id="menu"> (c) <p class="menu"> (d) <h1 class="big">
4. 4.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 Which CSS selector matches this element?
   <div class="red" id="top">Hello</div> (a) .red (b) .top (c) #red (d) #intro
6. 6.🎯 Can many elements share the same class? (a) No (b) Yes
7. 7.🎯 Which CSS selector matches this element?
   <span class="menu" id="top">Hello</span> (a) #menu (b) #top (c) .top (d) .note
8. 8.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <div id="top"> (c) <h2> (d) <h1 class="box">
9. 9.🎯 Which element does the selector .note style? (a) <h2 class="big"> (b) <h2 class="note"> (c) <li class="red"> (d) <h2 id="note">
10. 10.🎯 Which element does the selector .big style? (a) <h1 class="red"> (b) <h1 id="big"> (c) <h2 class="box"> (d) <h1 class="big">
11. 11.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
12. 12.🎯 Which element does the selector li style? (a) <li class="note"> (b) <div> (c) <p id="hero"> (d) <span class="note">
13. 13.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) #intro (b) .top (c) .big (d) .note
14. 14.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
15. 15.🎯 Which CSS selector matches this element?
    <div class="note" id="hero">Hello</div> (a) #top (b) .hero (c) .big (d) div
16. 16.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
17. 17.🎯 Which element does the selector h2 style? (a) <span id="main"> (b) <div class="menu"> (c) <li> (d) <h2 class="menu">
18. 18.🎯 Which element does the selector #end style? (a) <h1 id="end"> (b) <h1 id="hero"> (c) <h1 class="end"> (d) <h2 class="note">
19. 19.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
20. 20.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
21. 21.True or false: #main is an id selector. (a) True (b) False
22. 22.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) #logo (b) .note (c) .big (d) .main
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) .big (b) #intro (c) #note (d) li
24. 24.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 Which element does the selector #main style? (a) <span id="logo"> (b) <span class="main"> (c) <p class="big"> (d) <span id="main">
26. 26.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) .main (b) div (c) span (d) #logo
27. 27.🎯 Which CSS selector matches this element?
    <span class="note" id="main">Hello</span> (a) #logo (b) .big (c) .main (d) span
28. 28.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .note (b) h1 (c) .menu (d) #menu
30. 30.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) #star (b) #top (c) div (d) #intro
31. 31.🎯 Which CSS selector matches this element?
    <div class="red" id="hero">Hello</div> (a) .hero (b) .red (c) .box (d) #red
32. 32.True or false: #logo is an id selector. (a) False (b) True
33. 33.🎯 Which element does the selector #logo style? (a) <span class="star"> (b) <div id="end"> (c) <div class="logo"> (d) <div id="logo">
34. 34.🎯 Which element does the selector .big style? (a) <div class="big"> (b) <div class="red"> (c) <span class="box"> (d) <div id="big">
35. 35.True or false: .menu is an id selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <li class="big" id="intro">Hello</li> (a) .red (b) #main (c) .intro (d) #intro
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="main">Hello</h2> (a) .note (b) #menu (c) .main (d) .menu
38. 38.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
40. 40.True or false: .big is a class selector. (a) True (b) False

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