CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 600 · 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?
   <h1 class="star" id="hero">Hello</h1> (a) .hero (b) h1 (c) #star (d) .menu
2. 2.🎯 Which CSS selector matches this element?
   <span class="star" id="hero">Hello</span> (a) .hero (b) span (c) p (d) #star
3. 3.🎯 Which CSS selector matches this element?
   <span class="big" id="top">Hello</span> (a) .red (b) #big (c) span (d) .top
4. 4.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
5. 5.🎯 Which CSS selector matches this element?
   <div class="red" id="top">Hello</div> (a) #red (b) .top (c) span (d) div
6. 6.True or false: .note is an id selector. (a) True (b) False
7. 7.True or false: .note is an element selector. (a) True (b) False
8. 8.🎯 Which element does the selector #main style? (a) <span id="logo"> (b) <span id="main"> (c) <p class="star"> (d) <span class="main">
9. 9.True or false: p is an element selector. (a) False (b) True
10. 10.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) div (b) #red (c) .intro (d) .box
11. 11.🎯 Which element does the selector span style? (a) <span class="star"> (b) <h2 id="hero"> (c) <p> (d) <h1 class="star">
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="red" id="main">Hello</h2> (a) .main (b) li (c) h2 (d) .box
13. 13.True or false: #hero is an id selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <span class="box" id="logo">Hello</span> (a) span (b) #box (c) .logo (d) .star
15. 15.🎯 Which CSS selector matches this element?
    <h1 class="star" id="intro">Hello</h1> (a) .intro (b) h2 (c) #star (d) .star
16. 16.🎯 Which element does the selector div style? (a) <p class="big"> (b) <h1 id="hero"> (c) <span> (d) <div class="big">
17. 17.True or false: #end is an element selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <div class="box" id="top">Hello</div> (a) div (b) .star (c) #intro (d) span
19. 19.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
20. 20.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) .logo (b) div (c) #end (d) li
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) h2 (b) #logo (c) .star (d) #main
22. 22.🎯 Which CSS selector matches this element?
    <p class="box" id="hero">Hello</p> (a) p (b) .star (c) .hero (d) #top
23. 23.🎯 Which element does the selector h1 style? (a) <li class="red"> (b) <h1 class="red"> (c) <h2> (d) <div id="top">
24. 24.True or false: body is an id selector. (a) False (b) True
25. 25.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
26. 26.🎯 Which CSS selector matches this element?
    <div class="red" id="hero">Hello</div> (a) .box (b) .red (c) #red (d) span
27. 27.True or false: p is a class selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="box" id="hero">Hello</h1> (a) #top (b) #box (c) #hero (d) .hero
29. 29.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
30. 30.True or false: #end is a class selector. (a) False (b) True
31. 31.🎯 Which element does the selector .big style? (a) <h2 class="red"> (b) <h2 id="big"> (c) <h2 class="big"> (d) <li class="box">
32. 32.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <h2 class="big"> (c) <p class="big"> (d) <h1>
33. 33.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="intro"> (c) <div class="red"> (d) <li id="main">
34. 34.🎯 Which element does the selector #logo style? (a) <h1 id="logo"> (b) <h2 class="box"> (c) <h1 class="logo"> (d) <h1 id="end">
35. 35.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) #end (b) #big (c) .logo (d) div
36. 36.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
37. 37.True or false: img is an element selector. (a) True (b) False
38. 38.🎯 Which element does the selector div style? (a) <p class="note"> (b) <span> (c) <h1 id="end"> (d) <div class="note">
39. 39.🎯 Which element does the selector .menu style? (a) <li class="note"> (b) <li class="menu"> (c) <li id="menu"> (d) <div class="big">
40. 40.🎯 Can many elements share the same class? (a) Yes (b) No

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