CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 650 · 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?
   <h1 class="menu" id="logo">Hello</h1> (a) h1 (b) .logo (c) #end (d) h2
2. 2.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
3. 3.🎯 Which element does the selector #intro style? (a) <span class="intro"> (b) <p class="note"> (c) <span id="intro"> (d) <span id="main">
4. 4.🎯 Which element does the selector #end style? (a) <h2 class="end"> (b) <h2 id="end"> (c) <li class="big"> (d) <h2 id="hero">
5. 5.🎯 Which element does the selector span style? (a) <span class="menu"> (b) <h2 id="top"> (c) <p> (d) <h1 class="menu">
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="big" id="main">Hello</h1> (a) #main (b) #big (c) #logo (d) .main
7. 7.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <h2 class="menu"> (c) <h2 class="star"> (d) <li class="note">
8. 8.🎯 Can many elements share the same class? (a) Yes (b) No
9. 9.True or false: .menu is an element selector. (a) False (b) True
10. 10.🎯 Which sign starts an id selector? (a) @ (b) # (c) & (d) .
11. 11.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
12. 12.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which element does the selector #top style? (a) <h1 id="intro"> (b) <h1 class="top"> (c) <h2 class="big"> (d) <h1 id="top">
14. 14.True or false: #logo is an id selector. (a) False (b) True
15. 15.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) .red (b) .box (c) .logo (d) #red
16. 16.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
17. 17.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span class="star">
18. 18.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
19. 19.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) .main (b) .note (c) .menu (d) #menu
20. 20.True or false: body is a class selector. (a) False (b) True
21. 21.🎯 Which element does the selector #end style? (a) <p class="note"> (b) <span id="hero"> (c) <span class="end"> (d) <span id="end">
22. 22.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p id="star"> (c) <h1 class="note"> (d) <p class="star">
23. 23.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="hero">Hello</h1> (a) h2 (b) #menu (c) #hero (d) .hero
24. 24.🎯 Which element does the selector .big style? (a) <p class="big"> (b) <p class="red"> (c) <p id="big"> (d) <h1 class="box">
25. 25.True or false: .star is an id selector. (a) True (b) False
26. 26.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) li (b) .top (c) #note (d) h2
27. 27.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) .top (b) h1 (c) #top (d) #intro
28. 28.🎯 What kind of selector is .star? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) .end (b) #big (c) #end (d) div
30. 30.🎯 Which element does the selector .box style? (a) <h1 id="box"> (b) <h1 class="star"> (c) <h1 class="box"> (d) <h2 class="menu">
31. 31.True or false: .note is an id selector. (a) False (b) True
32. 32.True or false: .menu is an id selector. (a) True (b) False
33. 33.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <h2 class="menu"> (c) <h2 id="menu"> (d) <li class="big">
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) #intro (b) #big (c) h2 (d) .top
35. 35.🎯 Which element does the selector div style? (a) <p class="star"> (b) <h1 id="intro"> (c) <div class="star"> (d) <span>
36. 36.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <h1 class="red"> (c) <p> (d) <span class="red">
37. 37.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .note (b) .hero (c) div (d) #top
38. 38.🎯 Which CSS selector matches this element?
    <span class="menu" id="hero">Hello</span> (a) .note (b) #top (c) p (d) .menu
39. 39.🎯 Which element does the selector #hero style? (a) <h2 class="hero"> (b) <li class="note"> (c) <h2 id="top"> (d) <h2 id="hero">
40. 40.🎯 Which CSS selector matches this element?
    <span class="box" id="hero">Hello</span> (a) p (b) .star (c) .hero (d) .box

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