CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 265 · 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?
   <p class="menu" id="end">Hello</p> (a) #hero (b) h1 (c) #menu (d) p
2. 2.🎯 Which CSS selector matches this element?
   <li class="red" id="logo">Hello</li> (a) div (b) li (c) #end (d) #red
3. 3.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
4. 4.🎯 Can many elements share the same class? (a) No (b) Yes
5. 5.🎯 Which CSS selector matches this element?
   <div class="note" id="top">Hello</div> (a) span (b) .big (c) .note (d) .top
6. 6.🎯 Which element does the selector p style? (a) <h1> (b) <li id="logo"> (c) <p class="big"> (d) <h2 class="big">
7. 7.🎯 Which element does the selector li style? (a) <span class="big"> (b) <p id="top"> (c) <div> (d) <li class="big">
8. 8.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="intro"> (c) <li class="box"> (d) <h1 class="box">
9. 9.🎯 Which element does the selector #logo style? (a) <div class="note"> (b) <li id="end"> (c) <li id="logo"> (d) <li class="logo">
10. 10.🎯 Which element does the selector div style? (a) <h1 id="hero"> (b) <p class="menu"> (c) <span> (d) <div class="menu">
11. 11.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) h1 (b) #big (c) .red (d) .big
12. 12.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #red (b) .box (c) h1 (d) p
13. 13.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <p class="star"> (c) <h2 class="star"> (d) <h1>
14. 14.🎯 Which CSS selector matches this element?
    <span class="menu" id="main">Hello</span> (a) span (b) p (c) .main (d) #menu
15. 15.🎯 How many elements on a page should have the same id? (a) 5 (b) 1 (c) any number (d) 2
16. 16.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span id="star">
17. 17.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
18. 18.True or false: .menu is a class selector. (a) True (b) False
19. 19.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
20. 20.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) .red (b) #big (c) .top (d) p
21. 21.True or false: #main is an id selector. (a) True (b) False
22. 22.True or false: p is an id selector. (a) True (b) False
23. 23.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <h1 class="red"> (c) <div id="end"> (d) <h2>
24. 24.🎯 What kind of selector is p? (a) an element selector (b) an id selector (c) a class selector
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) h2 (b) #intro (c) #main (d) #menu
26. 26.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
27. 27.True or false: #top is an id selector. (a) True (b) False
28. 28.🎯 Which element does the selector #main style? (a) <h2 id="logo"> (b) <h2 class="main"> (c) <h2 id="main"> (d) <li class="big">
29. 29.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
31. 31.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
32. 32.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) #logo (b) .logo (c) .box (d) #end
33. 33.🎯 Which element does the selector #logo style? (a) <h2 id="end"> (b) <h2 id="logo"> (c) <h2 class="logo"> (d) <li class="red">
34. 34.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
35. 35.🎯 Which element does the selector .box style? (a) <h1 class="menu"> (b) <p class="box"> (c) <p id="box"> (d) <p class="star">
36. 36.True or false: .card is an id selector. (a) True (b) False
37. 37.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <h1 class="note"> (c) <h2> (d) <li class="note">
38. 38.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <div class="main"> (c) <span class="big"> (d) <div id="main">
39. 39.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
40. 40.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector

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