CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 654 · 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: .card is a class selector. (a) False (b) True
2. 2.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
3. 3.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
4. 4.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) 2 (d) any number
5. 5.🎯 Which CSS selector matches this element?
   <h1 class="star" id="top">Hello</h1> (a) .menu (b) #intro (c) h1 (d) h2
6. 6.🎯 Which element does the selector #end style? (a) <p id="hero"> (b) <p id="end"> (c) <p class="end"> (d) <h1 class="red">
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which element does the selector div style? (a) <span> (b) <p class="note"> (c) <div class="note"> (d) <h1 id="intro">
10. 10.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) .big (b) .red (c) #intro (d) #big
11. 11.True or false: img is an id selector. (a) False (b) True
12. 12.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
13. 13.True or false: .menu is an element selector. (a) False (b) True
14. 14.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
15. 15.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="star"> (c) <span class="star"> (d) <h2 id="end">
16. 16.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) .star (b) .hero (c) span (d) #box
17. 17.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
18. 18.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
19. 19.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
20. 20.🎯 Which element does the selector li style? (a) <li class="red"> (b) <p id="hero"> (c) <span class="red"> (d) <div>
21. 21.True or false: #hero is an element selector. (a) True (b) False
22. 22.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
23. 23.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) div (b) #big (c) .logo (d) .big
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) .logo (b) #logo (c) .star (d) #box
25. 25.True or false: .card is an id selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) .red (b) #big (c) .big (d) .main
27. 27.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) #logo (b) #end (c) #star (d) h1
28. 28.🎯 Which CSS selector matches this element?
    <p class="big" id="intro">Hello</p> (a) #main (b) h1 (c) .red (d) #intro
29. 29.True or false: #end is an id selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .menu (b) #menu (c) .main (d) #logo
31. 31.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) #logo (b) span (c) #box (d) p
32. 32.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .intro (b) #star (c) .star (d) .menu
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) li (b) #intro (c) .red (d) #main
34. 34.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
35. 35.🎯 Which element does the selector li style? (a) <p id="top"> (b) <div> (c) <span class="big"> (d) <li class="big">
36. 36.🎯 Which CSS selector matches this element?
    <li class="big" id="intro">Hello</li> (a) #intro (b) div (c) #main (d) .intro
37. 37.True or false: #main is an element selector. (a) True (b) False
38. 38.🎯 Which element does the selector .box style? (a) <h2 class="box"> (b) <h2 class="star"> (c) <li class="menu"> (d) <h2 id="box">
39. 39.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <li id="intro"> (c) <div class="red"> (d) <li id="top">
40. 40.🎯 Which CSS selector matches this element?
    <span class="red" id="main">Hello</span> (a) .red (b) .box (c) .main (d) #red

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