CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 932 · 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 .box style? (a) <li class="star"> (b) <div class="menu"> (c) <li class="box"> (d) <li id="box">
2. 2.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
3. 3.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
4. 4.🎯 Which CSS selector matches this element?
   <h1 class="star" id="logo">Hello</h1> (a) #star (b) .star (c) h2 (d) .logo
5. 5.True or false: .menu is an id selector. (a) True (b) False
6. 6.🎯 Which element does the selector #intro style? (a) <li id="main"> (b) <li id="intro"> (c) <li class="intro"> (d) <div class="big">
7. 7.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <span> (c) <p class="box"> (d) <div class="box">
9. 9.🎯 Which element does the selector #top style? (a) <span class="menu"> (b) <div id="top"> (c) <div id="intro"> (d) <div class="top">
10. 10.🎯 Which element does the selector .red style? (a) <h2 class="star"> (b) <h1 class="red"> (c) <h1 class="box"> (d) <h1 id="red">
11. 11.True or false: #top is a class selector. (a) False (b) True
12. 12.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
13. 13.True or false: p is an element selector. (a) False (b) True
14. 14.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .red (b) #big (c) .logo (d) li
15. 15.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) .star (b) .main (c) p (d) .box
16. 16.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
17. 17.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) .menu (b) #star (c) #end (d) .end
18. 18.🎯 Can many elements share the same class? (a) No (b) Yes
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .big (b) #top (c) .hero (d) h1
20. 20.True or false: #hero is a class selector. (a) False (b) True
21. 21.🎯 Which element does the selector p style? (a) <li id="main"> (b) <h2 class="box"> (c) <p class="box"> (d) <h1>
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) #main (b) #menu (c) li (d) .menu
23. 23.🎯 Which sign starts a class selector? (a) # (b) . (c) @ (d) &
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) #intro (b) #big (c) #main (d) li
25. 25.True or false: #end is a class selector. (a) True (b) False
26. 26.🎯 Which element does the selector .big style? (a) <li id="big"> (b) <li class="big"> (c) <div class="box"> (d) <li class="red">
27. 27.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
28. 28.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span id="red"> (c) <p class="star"> (d) <span class="red">
29. 29.🎯 Which element does the selector li style? (a) <p id="main"> (b) <li class="note"> (c) <span class="note"> (d) <div>
30. 30.True or false: body is an element selector. (a) False (b) True
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) h2 (b) #note (c) .big (d) li
32. 32.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
33. 33.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) .end (b) #hero (c) #end (d) h2
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) .end (b) .box (c) h2 (d) #hero
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .big (b) span (c) div (d) .main
36. 36.🎯 Which CSS selector matches this element?
    <div class="star" id="hero">Hello</div> (a) #star (b) .hero (c) div (d) span
37. 37.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
38. 38.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
39. 39.🎯 Which element does the selector .star style? (a) <span class="note"> (b) <div class="star"> (c) <div class="menu"> (d) <div id="star">
40. 40.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h1> (c) <p class="big"> (d) <h2 class="big">

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