CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 684 · 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 .big style? (a) <h1 class="box"> (b) <p class="red"> (c) <p id="big"> (d) <p class="big">
2. 2.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
3. 3.🎯 Which element does the selector .menu style? (a) <p class="big"> (b) <span class="menu"> (c) <span id="menu"> (d) <span class="note">
4. 4.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <p id="logo"> (d) <h1 class="menu">
5. 5.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
6. 6.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
7. 7.🎯 Which CSS selector matches this element?
   <h1 class="box" id="intro">Hello</h1> (a) h2 (b) #main (c) .star (d) #intro
8. 8.🎯 Which CSS selector matches this element?
   <div class="note" id="top">Hello</div> (a) span (b) .big (c) .note (d) #intro
9. 9.🎯 Which CSS selector matches this element?
   <p class="star" id="top">Hello</p> (a) #intro (b) h1 (c) .menu (d) p
10. 10.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h2 class="big"> (c) <h1 id="intro"> (d) <h1 id="top">
11. 11.🎯 What kind of selector is #main? (a) a class selector (b) an id selector (c) an element selector
12. 12.True or false: h1 is a class selector. (a) False (b) True
13. 13.🎯 Which element does the selector .star style? (a) <div class="note"> (b) <li class="star"> (c) <li id="star"> (d) <li class="menu">
14. 14.🎯 Which CSS selector matches this element?
    <li class="box" id="intro">Hello</li> (a) .star (b) #box (c) .box (d) .intro
15. 15.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) h1 (b) .note (c) #note (d) #main
16. 16.🎯 Which element does the selector #end style? (a) <li id="end"> (b) <li id="hero"> (c) <div class="box"> (d) <li class="end">
17. 17.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) div (b) #menu (c) .logo (d) #end
18. 18.True or false: .big is a class selector. (a) True (b) False
19. 19.🎯 Which sign starts an id selector? (a) & (b) # (c) @ (d) .
20. 20.🎯 Which element does the selector h2 style? (a) <span id="intro"> (b) <h2 class="box"> (c) <li> (d) <div class="box">
21. 21.🎯 Which CSS selector matches this element?
    <li class="box" id="top">Hello</li> (a) #intro (b) .top (c) div (d) li
22. 22.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h2 class="note"> (c) <h1 id="intro"> (d) <h1 class="intro">
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="logo">Hello</h2> (a) .logo (b) li (c) h2 (d) #menu
24. 24.True or false: #end is an id selector. (a) True (b) False
25. 25.🎯 Can many elements share the same class? (a) No (b) Yes
26. 26.🎯 Which element does the selector .big style? (a) <span class="box"> (b) <div class="big"> (c) <div id="big"> (d) <div class="red">
27. 27.True or false: .star is an element selector. (a) True (b) False
28. 28.🎯 Which element does the selector .menu style? (a) <h1 class="big"> (b) <p id="menu"> (c) <p class="note"> (d) <p class="menu">
29. 29.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <span class="red"> (c) <div class="logo"> (d) <div id="end">
30. 30.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
31. 31.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
32. 32.🎯 Which element does the selector .red style? (a) <div class="box"> (b) <div id="red"> (c) <span class="star"> (d) <div class="red">
33. 33.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
34. 34.🎯 Which element does the selector .red style? (a) <li class="box"> (b) <li id="red"> (c) <li class="red"> (d) <div class="star">
35. 35.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) .main (b) #logo (c) #big (d) #main
36. 36.🎯 Which CSS selector matches this element?
    <span class="star" id="top">Hello</span> (a) #star (b) span (c) #intro (d) .top
37. 37.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) p (b) #note (c) span (d) .hero
38. 38.🎯 Which element does the selector div style? (a) <div class="star"> (b) <h1 id="intro"> (c) <span> (d) <p class="star">
39. 39.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
40. 40.🎯 Which element does the selector #end style? (a) <h1 class="note"> (b) <p class="end"> (c) <p id="hero"> (d) <p id="end">

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