CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 215 · 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="big" id="logo">Hello</p> (a) h1 (b) .logo (c) #big (d) #logo
2. 2.🎯 Which element does the selector h2 style? (a) <span id="top"> (b) <h2 class="big"> (c) <li> (d) <div class="big">
3. 3.True or false: .big is a class selector. (a) False (b) True
4. 4.True or false: .card is an element selector. (a) True (b) False
5. 5.🎯 Which CSS selector matches this element?
   <p class="star" id="top">Hello</p> (a) #intro (b) h1 (c) .menu (d) .star
6. 6.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <span class="big"> (c) <h2 id="hero"> (d) <p>
7. 7.🎯 Which CSS selector matches this element?
   <li class="note" id="logo">Hello</li> (a) div (b) #note (c) #end (d) #logo
8. 8.🎯 Which element does the selector .note style? (a) <div class="note"> (b) <div id="note"> (c) <span class="red"> (d) <div class="big">
9. 9.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
10. 10.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 id="menu"> (c) <h1 class="note"> (d) <h1 class="menu">
11. 11.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) .box (b) .red (c) #red (d) .hero
12. 12.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) .star (b) .box (c) .logo (d) div
13. 13.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) .red (b) .big (c) #big (d) #end
14. 14.True or false: p is an element selector. (a) False (b) True
15. 15.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
16. 16.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
17. 17.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) #intro (b) p (c) #note (d) .big
18. 18.🎯 Which CSS selector matches this element?
    <p class="red" id="top">Hello</p> (a) .box (b) #top (c) #intro (d) .top
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) #intro (b) .note (c) #top (d) #menu
20. 20.True or false: #end is a class selector. (a) False (b) True
21. 21.🎯 Can many elements share the same class? (a) Yes (b) No
22. 22.True or false: #top is a class selector. (a) True (b) False
23. 23.True or false: .menu is an id selector. (a) False (b) True
24. 24.True or false: img is a class selector. (a) True (b) False
25. 25.True or false: #hero is an element selector. (a) True (b) False
26. 26.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
27. 27.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .top (b) .menu (c) #menu (d) h1
28. 28.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
29. 29.🎯 Which element does the selector p style? (a) <h1> (b) <li id="top"> (c) <p class="red"> (d) <h2 class="red">
30. 30.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) .star (b) p (c) #intro (d) #box
31. 31.🎯 Which element does the selector h1 style? (a) <div id="main"> (b) <h2> (c) <h1 class="red"> (d) <li class="red">
32. 32.True or false: #top is an id selector. (a) False (b) True
33. 33.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="note"> (d) <div class="logo">
35. 35.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <li class="star"> (c) <li class="menu"> (d) <div class="note">
36. 36.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) div (b) span (c) .red (d) #top
37. 37.True or false: .star is an element selector. (a) False (b) True
38. 38.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .big (b) #intro (c) p (d) .top
39. 39.🎯 Which element does the selector li style? (a) <span class="star"> (b) <p id="hero"> (c) <li class="star"> (d) <div>
40. 40.🎯 Which element does the selector p style? (a) <h2 class="note"> (b) <li id="main"> (c) <p class="note"> (d) <h1>

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