CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 859 · 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 element does the selector .red style? (a) <h2 class="star"> (b) <h1 id="red"> (c) <h1 class="red"> (d) <h1 class="box">
2. 2.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
3. 3.🎯 Which element does the selector .note style? (a) <h1 id="note"> (b) <h2 class="red"> (c) <h1 class="note"> (d) <h1 class="big">
4. 4.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <div> (c) <span class="big"> (d) <li class="big">
5. 5.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="box" id="logo">Hello</h1> (a) h2 (b) .box (c) #end (d) .logo
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="star" id="intro">Hello</h2> (a) #main (b) .intro (c) #intro (d) .menu
8. 8.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
9. 9.🎯 Which element does the selector .menu style? (a) <li class="menu"> (b) <li class="note"> (c) <div class="big"> (d) <li id="menu">
10. 10.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="red"> (c) <h1 class="red"> (d) <div id="top">
11. 11.🎯 Which element does the selector #main style? (a) <p id="main"> (b) <p id="logo"> (c) <h1 class="big"> (d) <p class="main">
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="note" id="intro">Hello</h2> (a) li (b) #note (c) #main (d) h2
13. 13.🎯 Which element does the selector .menu style? (a) <div class="menu"> (b) <span class="big"> (c) <div class="note"> (d) <div id="menu">
14. 14.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 Which sign starts an id selector? (a) # (b) . (c) & (d) @
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) .big (b) #note (c) #main (d) li
17. 17.🎯 Which CSS selector matches this element?
    <li class="star" id="hero">Hello</li> (a) div (b) #hero (c) #star (d) .hero
18. 18.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
19. 19.True or false: .note is a class selector. (a) False (b) True
20. 20.🎯 What kind of selector is li? (a) an element selector (b) a class selector (c) an id selector
21. 21.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) .box (b) span (c) #main (d) #box
22. 22.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #red (b) .logo (c) #end (d) #logo
23. 23.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) .top (b) div (c) li (d) #intro
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #hero (b) li (c) #big (d) .big
25. 25.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="red"> (c) <h2 class="red"> (d) <span id="intro">
26. 26.True or false: .star is a class selector. (a) False (b) True
27. 27.🎯 Which element does the selector #intro style? (a) <div class="intro"> (b) <div id="intro"> (c) <div id="main"> (d) <span class="red">
28. 28.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="note"> (c) <h1 class="note"> (d) <h2>
29. 29.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) p (b) #intro (c) .red (d) .top
30. 30.True or false: #main is a class selector. (a) False (b) True
31. 31.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
32. 32.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
33. 33.True or false: .menu is a class selector. (a) False (b) True
34. 34.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which element does the selector span style? (a) <span class="red"> (b) <p> (c) <h2 id="top"> (d) <h1 class="red">
36. 36.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="big"> (c) <span id="logo"> (d) <h2 class="big">
37. 37.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .hero (b) li (c) div (d) .star
38. 38.🎯 Which element does the selector .note style? (a) <h1 class="red"> (b) <p class="note"> (c) <p class="big"> (d) <p id="note">
39. 39.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
40. 40.🎯 Which element does the selector #intro style? (a) <li id="intro"> (b) <li class="intro"> (c) <div class="red"> (d) <li id="main">

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