CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 566 · 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.True or false: body is an element selector. (a) False (b) True
2. 2.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
3. 3.True or false: #logo is an id selector. (a) True (b) False
4. 4.🎯 Which CSS selector matches this element?
   <span class="big" id="top">Hello</span> (a) .top (b) #big (c) #intro (d) .big
5. 5.🎯 Which element does the selector span style? (a) <span class="note"> (b) <h2 id="logo"> (c) <p> (d) <h1 class="note">
6. 6.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
7. 7.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <li class="big"> (c) <h2 class="menu"> (d) <h2 class="note">
8. 8.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="intro"> (c) <li id="main"> (d) <div class="menu">
9. 9.True or false: h1 is an element selector. (a) False (b) True
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.🎯 Which element does the selector .note style? (a) <span class="red"> (b) <div id="note"> (c) <div class="big"> (d) <div class="note">
12. 12.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
13. 13.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) .logo (b) .box (c) h1 (d) #end
15. 15.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) div (b) #intro (c) span (d) .big
16. 16.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
17. 17.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
18. 18.🎯 Which element does the selector .big style? (a) <p id="big"> (b) <p class="red"> (c) <h1 class="box"> (d) <p class="big">
19. 19.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) #box (b) #top (c) .star (d) h1
20. 20.🎯 Which CSS selector matches this element?
    <p class="big" id="logo">Hello</p> (a) h1 (b) #logo (c) #big (d) #end
21. 21.True or false: p is a class selector. (a) True (b) False
22. 22.True or false: .big is a class selector. (a) True (b) False
23. 23.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
24. 24.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
25. 25.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which element does the selector h1 style? (a) <li class="star"> (b) <div id="top"> (c) <h1 class="star"> (d) <h2>
27. 27.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
28. 28.🎯 Which CSS selector matches this element?
    <div class="star" id="logo">Hello</div> (a) div (b) #star (c) .menu (d) .logo
29. 29.True or false: .note is a class selector. (a) True (b) False
30. 30.True or false: .card is an id selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) .star (b) p (c) span (d) #box
32. 32.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) div (b) .star (c) li (d) #box
33. 33.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .hero (b) .big (c) h1 (d) #top
35. 35.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
36. 36.True or false: img is a class selector. (a) False (b) True
37. 37.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <p id="menu"> (c) <h1 class="big"> (d) <p class="menu">
38. 38.True or false: .big is an id selector. (a) True (b) False
39. 39.🎯 Which element does the selector #top style? (a) <h1 class="red"> (b) <p class="top"> (c) <p id="top"> (d) <p id="intro">
40. 40.🎯 Which sign starts an id selector? (a) & (b) @ (c) . (d) #

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