CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 835 · 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 h2 style? (a) <h2 class="star"> (b) <div class="star"> (c) <span id="hero"> (d) <li>
2. 2.🎯 Which sign starts an id selector? (a) # (b) & (c) . (d) @
3. 3.🎯 Which CSS selector matches this element?
   <p class="menu" id="top">Hello</p> (a) h1 (b) p (c) .note (d) #menu
4. 4.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 id="menu"> (c) <h2 class="big"> (d) <h1 class="menu">
6. 6.🎯 Which element does the selector #top style? (a) <li id="intro"> (b) <div class="note"> (c) <li class="top"> (d) <li id="top">
7. 7.🎯 Which CSS selector matches this element?
   <p class="star" id="main">Hello</p> (a) p (b) #logo (c) .menu (d) #star
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="big" id="end">Hello</h2> (a) li (b) .red (c) #big (d) .big
9. 9.True or false: img is an element selector. (a) True (b) False
10. 10.True or false: .star is a class selector. (a) False (b) True
11. 11.🎯 Which element does the selector p style? (a) <li id="top"> (b) <h2 class="red"> (c) <p class="red"> (d) <h1>
12. 12.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) #big (b) .big (c) .main (d) #logo
13. 13.True or false: .card is a class selector. (a) False (b) True
14. 14.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div id="box"> (c) <div class="box"> (d) <div class="star">
15. 15.🎯 Which element does the selector .red style? (a) <span class="star"> (b) <div id="red"> (c) <div class="red"> (d) <div class="box">
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) .end (b) h2 (c) h1 (d) .star
17. 17.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #star (b) h1 (c) .menu (d) #end
19. 19.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) #end (b) .end (c) span (d) #box
20. 20.True or false: body is an element selector. (a) False (b) True
21. 21.🎯 Which element does the selector p style? (a) <li id="hero"> (b) <h2 class="box"> (c) <p class="box"> (d) <h1>
22. 22.🎯 What kind of selector is #logo? (a) an element selector (b) a class selector (c) an id selector
23. 23.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
24. 24.🎯 Can many elements share the same class? (a) No (b) Yes
25. 25.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) .top (b) #top (c) .big (d) #intro
26. 26.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
27. 27.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <div class="menu"> (c) <h1 id="main"> (d) <span>
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) h2 (b) #intro (c) #box (d) h1
29. 29.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
30. 30.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 Which CSS selector matches this element?
    <div class="red" id="end">Hello</div> (a) #red (b) .box (c) .end (d) .red
32. 32.🎯 Which element does the selector #top style? (a) <p id="top"> (b) <p class="top"> (c) <p id="intro"> (d) <h1 class="red">
33. 33.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
34. 34.True or false: .note is a class selector. (a) True (b) False
35. 35.🎯 Which element does the selector #hero style? (a) <div id="top"> (b) <div class="hero"> (c) <span class="red"> (d) <div id="hero">
36. 36.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="box"> (c) <span class="star"> (d) <span id="box">
37. 37.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) .end (b) .box (c) p (d) .star
38. 38.🎯 Which element does the selector #intro style? (a) <h2 id="main"> (b) <h2 class="intro"> (c) <h2 id="intro"> (d) <li class="star">
39. 39.True or false: #main is an id selector. (a) False (b) True
40. 40.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) div (b) #box (c) .star (d) #end

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