CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 406 · 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="star" id="intro">Hello</p> (a) .star (b) #main (c) .intro (d) .menu
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="red" id="hero">Hello</h1> (a) #hero (b) h2 (c) #red (d) .hero
3. 3.True or false: #hero is an id selector. (a) True (b) False
4. 4.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
6. 6.True or false: .star is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <div class="note" id="hero">Hello</div> (a) .big (b) #note (c) .hero (d) .note
8. 8.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
9. 9.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="big" id="end">Hello</h2> (a) .big (b) #big (c) li (d) .end
11. 11.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 2 (d) 5
12. 12.🎯 Can many elements share the same class? (a) No (b) Yes
13. 13.🎯 Which element does the selector h1 style? (a) <h1 class="star"> (b) <h2> (c) <div id="end"> (d) <li class="star">
14. 14.🎯 Which CSS selector matches this element?
    <li class="note" id="main">Hello</li> (a) #logo (b) #main (c) .main (d) #note
15. 15.🎯 Which sign starts an id selector? (a) . (b) & (c) # (d) @
16. 16.🎯 What kind of selector is .note? (a) a class selector (b) an element selector (c) an id selector
17. 17.🎯 Which element does the selector #logo style? (a) <li id="logo"> (b) <li class="logo"> (c) <li id="end"> (d) <div class="big">
18. 18.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) p (b) .intro (c) #red (d) #main
19. 19.True or false: #logo is an id selector. (a) True (b) False
20. 20.🎯 What kind of selector is .big? (a) a class selector (b) an element selector (c) an id selector
21. 21.True or false: #end is an id selector. (a) True (b) False
22. 22.🎯 Which element does the selector h1 style? (a) <h1 class="big"> (b) <div id="top"> (c) <h2> (d) <li class="big">
23. 23.🎯 Which element does the selector .menu style? (a) <span class="big"> (b) <div class="note"> (c) <div class="menu"> (d) <div id="menu">
24. 24.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <p class="star"> (c) <span> (d) <div class="star">
25. 25.🎯 Which element does the selector #hero style? (a) <li class="hero"> (b) <li id="hero"> (c) <li id="top"> (d) <div class="red">
26. 26.True or false: img is an element selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) #box (b) h1 (c) h2 (d) .end
28. 28.True or false: #main is an id selector. (a) False (b) True
29. 29.🎯 Which CSS selector matches this element?
    <li class="star" id="end">Hello</li> (a) #end (b) #hero (c) div (d) #star
30. 30.🎯 Which element does the selector #end style? (a) <li class="end"> (b) <li id="end"> (c) <li id="hero"> (d) <div class="menu">
31. 31.True or false: .card is an element selector. (a) False (b) True
32. 32.True or false: .big is a class selector. (a) True (b) False
33. 33.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) #main (b) #intro (c) #note (d) .big
35. 35.🎯 Which element does the selector div style? (a) <span> (b) <p class="note"> (c) <h1 id="main"> (d) <div class="note">
36. 36.🎯 Which element does the selector .menu style? (a) <h1 id="menu"> (b) <h2 class="big"> (c) <h1 class="menu"> (d) <h1 class="note">
37. 37.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 class="red"> (c) <li class="star"> (d) <h2 id="red">
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) h2 (b) .end (c) #hero (d) #end
39. 39.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="main"> (c) <h2 class="box"> (d) <div class="box">
40. 40.🎯 Which element does the selector li style? (a) <span class="star"> (b) <div> (c) <li class="star"> (d) <p id="top">

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