CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 866 · 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.🎯 Which element does the selector #logo style? (a) <span id="logo"> (b) <span id="end"> (c) <span class="logo"> (d) <p class="menu">
3. 3.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="logo">Hello</h2> (a) li (b) #menu (c) h2 (d) .note
4. 4.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) any number (d) 5
5. 5.🎯 Which CSS selector matches this element?
   <li class="note" id="end">Hello</li> (a) div (b) .big (c) li (d) #note
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="note" id="main">Hello</h2> (a) #note (b) li (c) #main (d) .big
7. 7.True or false: #hero is a class selector. (a) False (b) True
8. 8.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
9. 9.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
10. 10.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
11. 11.🎯 Which CSS selector matches this element?
    <h2 class="red" id="intro">Hello</h2> (a) .box (b) li (c) .red (d) .intro
12. 12.True or false: body is an id selector. (a) False (b) True
13. 13.True or false: .big is a class selector. (a) True (b) False
14. 14.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) .box (b) li (c) #red (d) #main
15. 15.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
16. 16.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <p id="menu"> (c) <h1 class="big"> (d) <p class="menu">
17. 17.🎯 Which element does the selector li style? (a) <li class="big"> (b) <div> (c) <p id="top"> (d) <span class="big">
18. 18.🎯 Can many elements share the same class? (a) Yes (b) No
19. 19.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) #main (b) #intro (c) .red (d) #big
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) #hero (b) .star (c) h2 (d) .menu
21. 21.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
22. 22.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
23. 23.True or false: body is a class selector. (a) True (b) False
24. 24.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
25. 25.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) #star (b) div (c) .star (d) .logo
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) #hero (b) h2 (c) li (d) #menu
27. 27.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
28. 28.🎯 Which element does the selector .box style? (a) <span id="box"> (b) <span class="star"> (c) <span class="box"> (d) <p class="menu">
29. 29.True or false: p is an element selector. (a) False (b) True
30. 30.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <li class="big"> (c) <h2> (d) <div id="main">
31. 31.🎯 Which element does the selector h1 style? (a) <div id="hero"> (b) <h1 class="star"> (c) <li class="star"> (d) <h2>
32. 32.True or false: li is an element selector. (a) True (b) False
33. 33.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
34. 34.True or false: .star is an id selector. (a) False (b) True
35. 35.🎯 Which element does the selector h2 style? (a) <h2 class="box"> (b) <li> (c) <span id="intro"> (d) <div class="box">
36. 36.🎯 Which element does the selector p style? (a) <p class="menu"> (b) <h2 class="menu"> (c) <h1> (d) <li id="hero">
37. 37.True or false: body is an element selector. (a) False (b) True
38. 38.True or false: .card is an id selector. (a) True (b) False
39. 39.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
40. 40.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <span> (c) <div class="menu"> (d) <p class="menu">

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