CSS Worksheet: Selectors Class and Id

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

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