CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 972 · 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 #main style? (a) <h1 class="big"> (b) <p class="main"> (c) <p id="main"> (d) <p id="logo">
2. 2.🎯 Which CSS selector matches this element?
   <li class="note" id="hero">Hello</li> (a) #note (b) .big (c) .hero (d) li
3. 3.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .
4. 4.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
5. 5.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
7. 7.True or false: .note is a class selector. (a) True (b) False
8. 8.🎯 Which CSS selector matches this element?
   <li class="red" id="intro">Hello</li> (a) #red (b) .box (c) li (d) #main
9. 9.🎯 Which CSS selector matches this element?
   <li class="note" id="main">Hello</li> (a) #logo (b) div (c) #main (d) .main
10. 10.🎯 Which sign starts a class selector? (a) @ (b) & (c) . (d) #
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) .red (b) #big (c) .hero (d) h1
12. 12.🎯 Which CSS selector matches this element?
    <li class="big" id="hero">Hello</li> (a) .red (b) li (c) .hero (d) #big
13. 13.🎯 Which element does the selector #logo style? (a) <h1 class="menu"> (b) <p id="logo"> (c) <p class="logo"> (d) <p id="end">
14. 14.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
15. 15.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) .intro (b) p (c) h1 (d) #main
16. 16.🎯 Which element does the selector #main style? (a) <span id="main"> (b) <span class="main"> (c) <span id="logo"> (d) <p class="note">
17. 17.True or false: .menu is a class selector. (a) True (b) False
18. 18.🎯 Which element does the selector .red style? (a) <h1 class="star"> (b) <p class="red"> (c) <p id="red"> (d) <p class="box">
19. 19.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) li (b) .note (c) #hero (d) div
20. 20.True or false: body is a class selector. (a) True (b) False
21. 21.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
22. 22.True or false: .card is an element selector. (a) False (b) True
23. 23.🎯 Which element does the selector .note style? (a) <h1 class="big"> (b) <h1 id="note"> (c) <h2 class="red"> (d) <h1 class="note">
24. 24.True or false: body is an element selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) p (b) #red (c) #logo (d) .logo
26. 26.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) any number (d) 1
27. 27.🎯 Can many elements share the same class? (a) Yes (b) No
28. 28.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
29. 29.True or false: .big is an element selector. (a) False (b) True
30. 30.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .menu (b) #star (c) #intro (d) .star
32. 32.True or false: .star is a class selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="star" id="top">Hello</h2> (a) .top (b) .menu (c) #star (d) #top
34. 34.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) li (b) #end (c) .menu (d) .logo
35. 35.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <span id="hero"> (c) <h2 class="menu"> (d) <li>
36. 36.🎯 Which CSS selector matches this element?
    <span class="red" id="intro">Hello</span> (a) #red (b) .red (c) #main (d) p
37. 37.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="box"> (c) <h2 id="logo"> (d) <span class="box">
38. 38.True or false: .card is a class selector. (a) True (b) False
39. 39.True or false: li is a class selector. (a) False (b) True
40. 40.🎯 Which element does the selector #end style? (a) <h1 id="end"> (b) <h1 id="hero"> (c) <h2 class="menu"> (d) <h1 class="end">

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