CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 91 · 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 CSS selector matches this element?
   <li class="big" id="main">Hello</li> (a) .red (b) #main (c) #logo (d) div
2. 2.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
3. 3.🎯 Which CSS selector matches this element?
   <span class="big" id="top">Hello</span> (a) #intro (b) .big (c) #big (d) p
4. 4.True or false: img is an element selector. (a) False (b) True
5. 5.🎯 Which element does the selector .menu style? (a) <li class="big"> (b) <h2 class="menu"> (c) <h2 class="note"> (d) <h2 id="menu">
6. 6.🎯 Which element does the selector #top style? (a) <span id="intro"> (b) <p class="note"> (c) <span id="top"> (d) <span class="top">
7. 7.🎯 Which element does the selector .note style? (a) <h2 class="red"> (b) <h1 class="big"> (c) <h1 class="note"> (d) <h1 id="note">
8. 8.True or false: .card is an element selector. (a) True (b) False
9. 9.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector
10. 10.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <h1 class="note"> (c) <p class="top"> (d) <p id="top">
11. 11.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
12. 12.🎯 Which element does the selector .box style? (a) <h1 id="box"> (b) <h1 class="box"> (c) <h2 class="menu"> (d) <h1 class="star">
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="main">Hello</h1> (a) #menu (b) .menu (c) h2 (d) .note
14. 14.🎯 Which CSS selector matches this element?
    <p class="note" id="top">Hello</p> (a) #intro (b) #note (c) p (d) h1
15. 15.🎯 Which element does the selector #intro style? (a) <p id="main"> (b) <h1 class="big"> (c) <p id="intro"> (d) <p class="intro">
16. 16.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
17. 17.🎯 Can many elements share the same class? (a) No (b) Yes
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="red" id="logo">Hello</h2> (a) h2 (b) .box (c) .logo (d) li
19. 19.True or false: .menu is an id selector. (a) False (b) True
20. 20.🎯 Which element does the selector span style? (a) <h1 class="star"> (b) <h2 id="logo"> (c) <p> (d) <span class="star">
21. 21.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) h1 (b) .box (c) #end (d) #box
22. 22.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
23. 23.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) h1 (b) p (c) .top (d) #intro
24. 24.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="red" id="top">Hello</h2> (a) #intro (b) #red (c) h2 (d) .box
26. 26.True or false: li is an element selector. (a) True (b) False
27. 27.True or false: .note is an element selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) #top (b) .hero (c) p (d) .red
29. 29.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) span (b) .red (c) .big (d) .end
30. 30.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
31. 31.🎯 Which element does the selector .star style? (a) <div class="note"> (b) <li class="star"> (c) <li id="star"> (d) <li class="menu">
32. 32.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
33. 33.True or false: .star is an id selector. (a) True (b) False
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) #logo (b) .red (c) #big (d) .big
35. 35.🎯 What kind of selector is .note? (a) an element selector (b) an id selector (c) a class selector
36. 36.True or false: #top is an element selector. (a) True (b) False
37. 37.🎯 Which element does the selector #logo style? (a) <li class="logo"> (b) <li id="end"> (c) <li id="logo"> (d) <div class="big">
38. 38.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
39. 39.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <h1 class="red"> (c) <li class="red"> (d) <h2>
40. 40.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector

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