CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 909 · 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 #end style? (a) <p class="end"> (b) <h1 class="big"> (c) <p id="end"> (d) <p id="hero">
2. 2.True or false: #main is an id selector. (a) False (b) True
3. 3.🎯 Which element does the selector .big style? (a) <h1 class="red"> (b) <h2 class="box"> (c) <h1 class="big"> (d) <h1 id="big">
4. 4.🎯 Which CSS selector matches this element?
   <span class="star" id="main">Hello</span> (a) span (b) .menu (c) .main (d) #star
5. 5.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
6. 6.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
7. 7.🎯 Which element does the selector #main style? (a) <h2 class="note"> (b) <h1 id="main"> (c) <h1 class="main"> (d) <h1 id="logo">
8. 8.🎯 Which element does the selector div style? (a) <p class="star"> (b) <div class="star"> (c) <span> (d) <h1 id="end">
9. 9.🎯 Which CSS selector matches this element?
   <h2 class="big" id="main">Hello</h2> (a) #logo (b) li (c) #main (d) .red
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="note" id="logo">Hello</h1> (a) h2 (b) #note (c) h1 (d) #end
11. 11.🎯 Which element does the selector li style? (a) <p id="main"> (b) <li class="big"> (c) <div> (d) <span class="big">
12. 12.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) h2 (b) #top (c) li (d) #star
14. 14.True or false: .star is a class selector. (a) False (b) True
15. 15.True or false: #logo is an id selector. (a) True (b) False
16. 16.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 5 (d) 1
17. 17.🎯 Can many elements share the same class? (a) No (b) Yes
18. 18.True or false: #end is an element selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) .main (b) #main (c) div (d) .red
20. 20.🎯 Which element does the selector #end style? (a) <div id="hero"> (b) <span class="note"> (c) <div id="end"> (d) <div class="end">
21. 21.🎯 What kind of selector is img? (a) an id selector (b) a class selector (c) an element selector
22. 22.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <h2> (c) <h1 class="box"> (d) <li class="box">
23. 23.True or false: h1 is an element selector. (a) False (b) True
24. 24.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
25. 25.True or false: .star is an id selector. (a) True (b) False
26. 26.🎯 Which element does the selector span style? (a) <h1 class="star"> (b) <h2 id="main"> (c) <span class="star"> (d) <p>
27. 27.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
28. 28.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) #main (b) #red (c) #intro (d) .intro
29. 29.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
30. 30.🎯 Which element does the selector #top style? (a) <li class="box"> (b) <h2 id="top"> (c) <h2 id="intro"> (d) <h2 class="top">
31. 31.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
32. 32.True or false: #end is an id selector. (a) True (b) False
33. 33.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
35. 35.True or false: #top is an id selector. (a) False (b) True
36. 36.🎯 Which element does the selector #hero style? (a) <div class="star"> (b) <li class="hero"> (c) <li id="hero"> (d) <li id="top">
37. 37.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
38. 38.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) #big (b) p (c) .main (d) span
39. 39.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) #logo (b) li (c) .menu (d) .star

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