CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 723 · 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.True or false: #logo is an id selector. (a) True (b) False
2. 2.True or false: .menu is a class selector. (a) True (b) False
3. 3.🎯 Which element does the selector span style? (a) <span class="note"> (b) <h2 id="logo"> (c) <h1 class="note"> (d) <p>
4. 4.🎯 Can many elements share the same class? (a) Yes (b) No
5. 5.🎯 Which CSS selector matches this element?
   <li class="menu" id="top">Hello</li> (a) #top (b) .top (c) #menu (d) #intro
6. 6.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
7. 7.True or false: #end is an id selector. (a) False (b) True
8. 8.True or false: #top is an id selector. (a) False (b) True
9. 9.🎯 What kind of selector is .star? (a) a class selector (b) an element selector (c) an id selector
10. 10.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
11. 11.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 5 (d) 2
12. 12.🎯 Which element does the selector .big style? (a) <p class="box"> (b) <span class="red"> (c) <span class="big"> (d) <span id="big">
13. 13.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which element does the selector p style? (a) <li id="end"> (b) <p class="menu"> (c) <h2 class="menu"> (d) <h1>
15. 15.🎯 Which element does the selector .box style? (a) <li class="box"> (b) <li class="star"> (c) <div class="menu"> (d) <li id="box">
16. 16.True or false: body is an id selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) span (b) .big (c) #big (d) #end
18. 18.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
19. 19.🎯 Which CSS selector matches this element?
    <h1 class="note" id="end">Hello</h1> (a) .big (b) h1 (c) .end (d) #hero
20. 20.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="big" id="intro">Hello</h1> (a) h1 (b) .intro (c) h2 (d) #big
22. 22.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
23. 23.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <span class="big"> (d) <h2 id="end">
24. 24.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) .menu (b) .logo (c) p (d) span
25. 25.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
26. 26.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
27. 27.🎯 Which CSS selector matches this element?
    <p class="box" id="main">Hello</p> (a) .star (b) h1 (c) p (d) #logo
28. 28.🎯 Which element does the selector .menu style? (a) <h2 id="menu"> (b) <li class="big"> (c) <h2 class="menu"> (d) <h2 class="note">
29. 29.🎯 Which CSS selector matches this element?
    <span class="red" id="main">Hello</span> (a) .main (b) #main (c) #red (d) p
30. 30.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
31. 31.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) h2 (b) #hero (c) li (d) .box
32. 32.🎯 Which element does the selector .red style? (a) <p class="box"> (b) <p class="red"> (c) <p id="red"> (d) <h1 class="star">
33. 33.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
35. 35.🎯 Which element does the selector .star style? (a) <li class="note"> (b) <h2 class="menu"> (c) <h2 class="star"> (d) <h2 id="star">
36. 36.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) li (b) #box (c) #end (d) .star
38. 38.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) #logo (b) #note (c) .main (d) .note
39. 39.True or false: .card is a class selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) div (b) span (c) .big (d) #intro

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