CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 49 · 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.🎯 Can many elements share the same class? (a) Yes (b) No
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="logo">Hello</span> (a) #star (b) .menu (c) .logo (d) span
3. 3.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <span> (c) <div class="note"> (d) <p class="note">
4. 4.🎯 Which element does the selector .big style? (a) <h1 class="big"> (b) <h2 class="box"> (c) <h1 class="red"> (d) <h1 id="big">
5. 5.🎯 Which CSS selector matches this element?
   <h1 class="star" id="main">Hello</h1> (a) #logo (b) .menu (c) h2 (d) .star
6. 6.True or false: .note is a class selector. (a) True (b) False
7. 7.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
8. 8.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
9. 9.🎯 Which CSS selector matches this element?
   <p class="box" id="top">Hello</p> (a) .top (b) h1 (c) #intro (d) #top
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) #top (b) .menu (c) .top (d) #star
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="red" id="end">Hello</h1> (a) #red (b) .red (c) #hero (d) .box
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) li (b) #end (c) .star (d) .logo
13. 13.🎯 Which sign starts a class selector? (a) & (b) # (c) @ (d) .
14. 14.True or false: img is an element selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h2 (b) h1 (c) .intro (d) #main
16. 16.🎯 Which element does the selector .red style? (a) <span id="red"> (b) <p class="star"> (c) <span class="box"> (d) <span class="red">
17. 17.🎯 Which CSS selector matches this element?
    <li class="menu" id="logo">Hello</li> (a) #menu (b) #logo (c) .logo (d) div
18. 18.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) #logo (b) #box (c) span (d) div
19. 19.🎯 Which element does the selector .note style? (a) <div class="big"> (b) <div id="note"> (c) <span class="red"> (d) <div class="note">
20. 20.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
21. 21.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) 5 (d) any number
22. 22.True or false: .menu is an element selector. (a) True (b) False
23. 23.🎯 Which element does the selector #hero style? (a) <h2 id="hero"> (b) <li class="big"> (c) <h2 id="top"> (d) <h2 class="hero">
24. 24.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
25. 25.True or false: .star is a class selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <p class="star" id="main">Hello</p> (a) #logo (b) .main (c) p (d) h1
27. 27.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) .logo (b) #end (c) #logo (d) #star
28. 28.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <h2 id="main"> (c) <h2 id="intro"> (d) <li class="box">
29. 29.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
30. 30.True or false: p is an element selector. (a) True (b) False
31. 31.🎯 Which element does the selector h2 style? (a) <span id="end"> (b) <li> (c) <h2 class="menu"> (d) <div class="menu">
32. 32.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #main (b) #menu (c) h1 (d) .menu
33. 33.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) .menu (b) .note (c) div (d) #menu
34. 34.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
35. 35.True or false: body is an id selector. (a) True (b) False
36. 36.True or false: .menu is an id selector. (a) True (b) False
37. 37.True or false: p is an id selector. (a) True (b) False
38. 38.🎯 Which element does the selector #main style? (a) <span class="main"> (b) <p class="red"> (c) <span id="logo"> (d) <span id="main">
39. 39.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) span (b) p (c) .big (d) #note
40. 40.🎯 Which element does the selector span style? (a) <h2 id="logo"> (b) <h1 class="big"> (c) <p> (d) <span class="big">

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