CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 311 · 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 p style? (a) <h2 class="big"> (b) <p class="big"> (c) <h1> (d) <li id="end">
2. 2.🎯 Which element does the selector .menu style? (a) <h2 class="big"> (b) <h1 id="menu"> (c) <h1 class="menu"> (d) <h1 class="note">
3. 3.🎯 Which element does the selector .star style? (a) <h1 class="note"> (b) <p class="star"> (c) <p class="menu"> (d) <p id="star">
4. 4.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 Which element does the selector #hero style? (a) <h1 id="top"> (b) <h1 class="hero"> (c) <h2 class="box"> (d) <h1 id="hero">
6. 6.🎯 Which CSS selector matches this element?
   <div class="menu" id="hero">Hello</div> (a) div (b) #menu (c) span (d) #top
7. 7.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
8. 8.🎯 Which sign starts a class selector? (a) # (b) . (c) & (d) @
9. 9.True or false: #end is an element selector. (a) True (b) False
10. 10.🎯 Which element does the selector #hero style? (a) <h2 id="hero"> (b) <h2 id="top"> (c) <li class="star"> (d) <h2 class="hero">
11. 11.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
12. 12.True or false: h1 is a class selector. (a) True (b) False
13. 13.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
14. 14.True or false: .note is a class selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) #red (b) li (c) .box (d) #end
16. 16.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
17. 17.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <div class="menu"> (c) <span> (d) <h1 id="top">
18. 18.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) #end (b) h2 (c) #logo (d) .logo
19. 19.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
20. 20.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <div id="hero"> (c) <h2> (d) <h1 class="note">
21. 21.True or false: #hero is an element selector. (a) True (b) False
22. 22.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
23. 23.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) .note (b) p (c) .menu (d) .intro
24. 24.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span id="intro"> (c) <span class="top"> (d) <p class="menu">
25. 25.🎯 Which CSS selector matches this element?
    <span class="box" id="top">Hello</span> (a) .star (b) #box (c) .top (d) .box
26. 26.True or false: #main is a class selector. (a) True (b) False
27. 27.True or false: li is an element selector. (a) True (b) False
28. 28.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <li id="hero"> (c) <div class="star"> (d) <li id="end">
29. 29.🎯 Which element does the selector #end style? (a) <p class="end"> (b) <p id="end"> (c) <p id="hero"> (d) <h1 class="note">
30. 30.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
31. 31.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) div (b) .red (c) #top (d) #big
32. 32.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
33. 33.🎯 Which CSS selector matches this element?
    <li class="big" id="top">Hello</li> (a) #big (b) div (c) .big (d) #intro
34. 34.🎯 Which element does the selector p style? (a) <h1> (b) <p class="menu"> (c) <li id="logo"> (d) <h2 class="menu">
35. 35.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <h1 class="box"> (c) <div id="top"> (d) <h2>
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="note" id="end">Hello</h2> (a) .end (b) li (c) .big (d) h2
37. 37.🎯 Which sign starts an id selector? (a) @ (b) . (c) # (d) &
38. 38.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
39. 39.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) #logo (b) h1 (c) p (d) .main
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="box" id="end">Hello</h2> (a) li (b) .end (c) .box (d) #hero

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