CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 682 · 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 CSS selector matches this element?
   <p class="menu" id="main">Hello</p> (a) #menu (b) p (c) #logo (d) h1
2. 2.🎯 Which CSS selector matches this element?
   <div class="note" id="hero">Hello</div> (a) #note (b) .hero (c) .big (d) div
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 element does the selector div style? (a) <p class="red"> (b) <span> (c) <h1 id="intro"> (d) <div class="red">
5. 5.🎯 Can many elements share the same class? (a) Yes (b) No
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="star" id="main">Hello</h2> (a) li (b) .main (c) #logo (d) .star
7. 7.🎯 Which element does the selector #hero style? (a) <p id="top"> (b) <p class="hero"> (c) <h1 class="menu"> (d) <p id="hero">
8. 8.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <p class="box"> (c) <span id="intro"> (d) <span class="intro">
9. 9.🎯 What kind of selector is body? (a) a class selector (b) an id selector (c) an element selector
10. 10.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .big (b) #intro (c) .top (d) .note
11. 11.True or false: #end is an element selector. (a) True (b) False
12. 12.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h1 class="intro"> (c) <h2 class="note"> (d) <h1 id="intro">
13. 13.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
14. 14.🎯 Which element does the selector #logo style? (a) <li class="red"> (b) <h2 id="logo"> (c) <h2 id="end"> (d) <h2 class="logo">
15. 15.True or false: img is an id selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <div class="menu" id="top">Hello</div> (a) .note (b) .top (c) #top (d) span
17. 17.True or false: .menu is an element selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) #hero (b) #big (c) .end (d) .big
19. 19.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) p (b) .red (c) .logo (d) #end
20. 20.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
21. 21.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
22. 22.🎯 Which element does the selector .box style? (a) <p id="box"> (b) <p class="star"> (c) <h1 class="menu"> (d) <p class="box">
23. 23.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
24. 24.🎯 Which element does the selector .big style? (a) <h1 id="big"> (b) <h1 class="red"> (c) <h2 class="box"> (d) <h1 class="big">
25. 25.🎯 Which CSS selector matches this element?
    <h2 class="star" id="end">Hello</h2> (a) .end (b) #star (c) #hero (d) h2
26. 26.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
27. 27.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) h1 (b) #hero (c) #star (d) #end
28. 28.🎯 Which CSS selector matches this element?
    <span class="box" id="intro">Hello</span> (a) p (b) .box (c) #main (d) .intro
29. 29.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) #main (b) .box (c) #logo (d) .main
30. 30.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
31. 31.🎯 Which CSS selector matches this element?
    <span class="star" id="intro">Hello</span> (a) .star (b) .menu (c) #star (d) #main
32. 32.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) #intro (b) p (c) h1 (d) .menu
33. 33.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector
34. 34.🎯 Which element does the selector #intro style? (a) <p id="intro"> (b) <p class="intro"> (c) <p id="main"> (d) <h1 class="menu">
35. 35.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span class="red"> (c) <span id="red"> (d) <p class="star">
36. 36.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
37. 37.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <li class="note"> (c) <li class="big"> (d) <div class="red">
38. 38.🎯 Which element does the selector div style? (a) <h1 id="top"> (b) <p class="big"> (c) <span> (d) <div class="big">
39. 39.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) #hero (b) p (c) .red (d) span
40. 40.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <span id="logo"> (c) <p class="big"> (d) <span class="logo">

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