CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 83 · 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?
   <h1 class="menu" id="intro">Hello</h1> (a) #main (b) .note (c) h2 (d) .menu
2. 2.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <li class="note"> (c) <h2 class="star"> (d) <h2 class="menu">
3. 3.🎯 Which element does the selector .menu style? (a) <h1 id="menu"> (b) <h1 class="menu"> (c) <h1 class="note"> (d) <h2 class="big">
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.True or false: .note is a class selector. (a) False (b) True
6. 6.True or false: h1 is an element selector. (a) False (b) True
7. 7.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
8. 8.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="star"> (c) <p class="note"> (d) <span class="menu">
9. 9.🎯 Which element does the selector .red style? (a) <li class="red"> (b) <div class="star"> (c) <li id="red"> (d) <li class="box">
10. 10.True or false: body is an element selector. (a) True (b) False
11. 11.🎯 Which sign starts a class selector? (a) & (b) @ (c) # (d) .
12. 12.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
13. 13.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
14. 14.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
15. 15.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
16. 16.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) #red (b) .red (c) h2 (d) .main
18. 18.True or false: .menu is an id selector. (a) True (b) False
19. 19.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
20. 20.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="red"> (c) <h1 class="red"> (d) <div id="logo">
21. 21.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) .menu (b) h2 (c) #star (d) .main
23. 23.🎯 Which element does the selector li style? (a) <li class="note"> (b) <span class="note"> (c) <p id="hero"> (d) <div>
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) #main (b) .intro (c) h1 (d) h2
25. 25.🎯 Which CSS selector matches this element?
    <li class="red" id="main">Hello</li> (a) #main (b) #logo (c) #red (d) div
26. 26.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) .logo (b) #end (c) .red (d) #red
27. 27.True or false: li is an element selector. (a) False (b) True
28. 28.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) h2 (b) #intro (c) #box (d) li
30. 30.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
31. 31.True or false: .menu is a class selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) .red (b) #intro (c) #big (d) #top
33. 33.True or false: #logo is an id selector. (a) False (b) True
34. 34.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="intro"> (c) <h2 class="star"> (d) <h1 id="top">
35. 35.True or false: li is a class selector. (a) True (b) False
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) #menu (b) .intro (c) .note (d) .menu
37. 37.🎯 Which CSS selector matches this element?
    <span class="red" id="hero">Hello</span> (a) .red (b) .box (c) #top (d) #red
38. 38.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) p (b) #big (c) #main (d) .intro
39. 39.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="note"> (c) <li class="big"> (d) <div class="red">
40. 40.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .

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