CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 426 · 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.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="intro">Hello</span> (a) p (b) .intro (c) .star (d) #star
3. 3.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
5. 5.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="box" id="hero">Hello</h2> (a) #box (b) #top (c) .hero (d) h2
8. 8.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
9. 9.True or false: li is an element selector. (a) False (b) True
10. 10.True or false: p is an id selector. (a) True (b) False
11. 11.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
12. 12.🎯 Which CSS selector matches this element?
    <div class="box" id="main">Hello</div> (a) span (b) .main (c) #logo (d) div
13. 13.🎯 Which CSS selector matches this element?
    <span class="star" id="hero">Hello</span> (a) #top (b) #star (c) span (d) p
14. 14.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) span (b) #note (c) .big (d) #intro
15. 15.True or false: #logo is an id selector. (a) True (b) False
16. 16.🎯 Which element does the selector #main style? (a) <h1 class="red"> (b) <p id="main"> (c) <p class="main"> (d) <p id="logo">
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="star" id="hero">Hello</h1> (a) #top (b) h2 (c) .star (d) .hero
18. 18.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="end">Hello</h1> (a) .end (b) #menu (c) #hero (d) .menu
19. 19.🎯 Which element does the selector li style? (a) <p id="top"> (b) <span class="note"> (c) <li class="note"> (d) <div>
20. 20.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) span (b) .box (c) div (d) #red
21. 21.🎯 Which element does the selector h2 style? (a) <span id="top"> (b) <div class="box"> (c) <li> (d) <h2 class="box">
22. 22.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
23. 23.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .note (b) #logo (c) span (d) .big
24. 24.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <h1 class="star"> (d) <p id="logo">
25. 25.True or false: .note is a class selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) #top (b) .note (c) h2 (d) .hero
27. 27.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
28. 28.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) .big (b) #note (c) .note (d) div
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) #big (b) li (c) h2 (d) .red
30. 30.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #big (b) .red (c) .main (d) .big
31. 31.🎯 Which element does the selector li style? (a) <span class="menu"> (b) <div> (c) <li class="menu"> (d) <p id="hero">
32. 32.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #note (b) #end (c) .note (d) h1
33. 33.🎯 Which CSS selector matches this element?
    <li class="box" id="main">Hello</li> (a) #logo (b) li (c) #box (d) .star
34. 34.🎯 Which element does the selector p style? (a) <p class="big"> (b) <li id="main"> (c) <h1> (d) <h2 class="big">
35. 35.🎯 Which element does the selector #end style? (a) <h2 class="end"> (b) <h2 id="end"> (c) <h2 id="hero"> (d) <li class="note">
36. 36.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
37. 37.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) h1 (b) p (c) #note (d) .end
38. 38.True or false: #hero is an id selector. (a) False (b) True
39. 39.🎯 Which element does the selector h2 style? (a) <li> (b) <h2 class="menu"> (c) <div class="menu"> (d) <span id="top">
40. 40.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector

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