CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 171 · 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.🎯 How many elements on a page should have the same id? (a) 1 (b) 2 (c) any number (d) 5
2. 2.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
3. 3.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
4. 4.🎯 Which CSS selector matches this element?
   <div class="menu" id="logo">Hello</div> (a) .note (b) span (c) #menu (d) div
5. 5.🎯 Which sign starts an id selector? (a) @ (b) & (c) . (d) #
6. 6.🎯 Which element does the selector .box style? (a) <h1 class="box"> (b) <h1 id="box"> (c) <h1 class="star"> (d) <h2 class="menu">
7. 7.🎯 Which element does the selector #logo style? (a) <h1 id="end"> (b) <h1 class="logo"> (c) <h1 id="logo"> (d) <h2 class="menu">
8. 8.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="logo"> (c) <h2 class="box"> (d) <div class="box">
9. 9.🎯 Which CSS selector matches this element?
   <p class="box" id="top">Hello</p> (a) #box (b) .star (c) .top (d) p
10. 10.🎯 Which element does the selector h1 style? (a) <h1 class="box"> (b) <div id="intro"> (c) <li class="box"> (d) <h2>
11. 11.🎯 Which CSS selector matches this element?
    <div class="red" id="intro">Hello</div> (a) .intro (b) #intro (c) #main (d) #red
12. 12.True or false: #end is a class selector. (a) False (b) True
13. 13.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) .logo (b) #end (c) .menu (d) .star
15. 15.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) #hero (b) .star (c) span (d) .end
16. 16.True or false: body is a class selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .menu (b) .note (c) .top (d) #intro
18. 18.🎯 Which element does the selector h1 style? (a) <div id="end"> (b) <h2> (c) <li class="red"> (d) <h1 class="red">
19. 19.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
20. 20.True or false: #logo is a class selector. (a) True (b) False
21. 21.🎯 Which element does the selector p style? (a) <p class="star"> (b) <h2 class="star"> (c) <li id="logo"> (d) <h1>
22. 22.True or false: #logo is an element selector. (a) False (b) True
23. 23.True or false: #end is an id selector. (a) True (b) False
24. 24.True or false: li is an element selector. (a) True (b) False
25. 25.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
26. 26.🎯 Which element does the selector #intro style? (a) <div id="intro"> (b) <div id="main"> (c) <div class="intro"> (d) <span class="note">
27. 27.🎯 Which element does the selector #top style? (a) <p id="top"> (b) <h1 class="menu"> (c) <p id="intro"> (d) <p class="top">
28. 28.🎯 Which CSS selector matches this element?
    <li class="big" id="main">Hello</li> (a) div (b) #logo (c) #big (d) li
29. 29.🎯 Which CSS selector matches this element?
    <li class="star" id="main">Hello</li> (a) #logo (b) .star (c) .main (d) div
30. 30.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) #note (b) div (c) .note (d) .big
31. 31.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="red" id="intro">Hello</h1> (a) h2 (b) .box (c) #red (d) #intro
33. 33.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) span (b) div (c) .main (d) .menu
34. 34.True or false: li is a class selector. (a) False (b) True
35. 35.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
36. 36.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
37. 37.True or false: #main is an id selector. (a) True (b) False
38. 38.True or false: .big is a class selector. (a) True (b) False
39. 39.True or false: .star is a class selector. (a) False (b) True
40. 40.🎯 What kind of selector is .card? (a) a class selector (b) an id selector (c) an element selector

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