CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 472 · 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: .menu is an id selector. (a) True (b) False
2. 2.🎯 Which element does the selector h2 style? (a) <span id="hero"> (b) <div class="star"> (c) <h2 class="star"> (d) <li>
3. 3.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
4. 4.🎯 Which element does the selector .box style? (a) <div class="box"> (b) <div id="box"> (c) <span class="menu"> (d) <div class="star">
5. 5.🎯 Which sign starts an id selector? (a) . (b) @ (c) # (d) &
6. 6.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
7. 7.🎯 Which element does the selector p style? (a) <p class="star"> (b) <li id="top"> (c) <h2 class="star"> (d) <h1>
8. 8.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
9. 9.🎯 Which element does the selector .menu style? (a) <p id="menu"> (b) <h1 class="big"> (c) <p class="menu"> (d) <p class="note">
10. 10.🎯 Which CSS selector matches this element?
    <p class="note" id="hero">Hello</p> (a) .big (b) #top (c) #hero (d) h1
11. 11.True or false: #main is a class selector. (a) True (b) False
12. 12.True or false: #logo is an id selector. (a) True (b) False
13. 13.🎯 Which element does the selector #end style? (a) <h1 id="hero"> (b) <h1 class="end"> (c) <h1 id="end"> (d) <h2 class="note">
14. 14.True or false: #main 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) #box (d) #intro
16. 16.True or false: .note is an id selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) #intro (b) #menu (c) .note (d) #main
18. 18.True or false: .menu is a class selector. (a) False (b) True
19. 19.True or false: li is an element selector. (a) True (b) False
20. 20.True or false: #hero is an id selector. (a) True (b) False
21. 21.🎯 Which element does the selector span style? (a) <p> (b) <h1 class="menu"> (c) <span class="menu"> (d) <h2 id="intro">
22. 22.🎯 Which CSS selector matches this element?
    <li class="box" id="hero">Hello</li> (a) .box (b) #top (c) div (d) .hero
23. 23.🎯 Which CSS selector matches this element?
    <li class="menu" id="hero">Hello</li> (a) .note (b) #menu (c) .menu (d) .hero
24. 24.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
25. 25.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .red (b) #main (c) h1 (d) .box
26. 26.True or false: h1 is a class selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) h1 (b) #menu (c) .menu (d) #logo
28. 28.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) #box (b) .star (c) span (d) .box
29. 29.🎯 Which element does the selector #intro style? (a) <p id="main"> (b) <p id="intro"> (c) <h1 class="red"> (d) <p class="intro">
30. 30.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="box"> (c) <div id="top"> (d) <li class="box">
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="star" id="main">Hello</h2> (a) .menu (b) #star (c) h2 (d) li
32. 32.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
33. 33.True or false: #logo is a class selector. (a) False (b) True
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) .red (b) #hero (c) #end (d) #big
35. 35.True or false: img is a class selector. (a) True (b) False
36. 36.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <h2 class="menu"> (c) <h2 id="menu"> (d) <li class="big">
37. 37.🎯 Which element does the selector #intro style? (a) <div id="intro"> (b) <div class="intro"> (c) <span class="box"> (d) <div id="main">
38. 38.True or false: .big is a class selector. (a) False (b) True
39. 39.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <li id="top"> (c) <p class="menu"> (d) <h1>
40. 40.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <div id="top"> (c) <span class="menu"> (d) <div id="intro">

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