CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 887 · 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: .star is an element selector. (a) False (b) True
2. 2.🎯 Which element does the selector p style? (a) <h1> (b) <li id="intro"> (c) <h2 class="note"> (d) <p class="note">
3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
4. 4.🎯 Which sign starts a class selector? (a) . (b) # (c) & (d) @
5. 5.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
6. 6.🎯 Which element does the selector #main style? (a) <h2 id="logo"> (b) <li class="note"> (c) <h2 class="main"> (d) <h2 id="main">
7. 7.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="intro"> (c) <h1 class="note"> (d) <li class="note">
8. 8.True or false: #main is an id selector. (a) False (b) True
9. 9.🎯 Which element does the selector #logo style? (a) <h1 class="box"> (b) <p id="end"> (c) <p id="logo"> (d) <p class="logo">
10. 10.🎯 Which element does the selector .box style? (a) <span class="star"> (b) <p class="menu"> (c) <span class="box"> (d) <span id="box">
11. 11.🎯 Which element does the selector .red style? (a) <div class="star"> (b) <li class="box"> (c) <li id="red"> (d) <li class="red">
12. 12.True or false: h1 is a class selector. (a) False (b) True
13. 13.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="top"> (c) <div class="box"> (d) <h2 class="box">
14. 14.🎯 Which element does the selector h2 style? (a) <div class="red"> (b) <li> (c) <span id="intro"> (d) <h2 class="red">
15. 15.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <div id="star"> (c) <span class="note"> (d) <div class="star">
16. 16.True or false: .menu is an element selector. (a) True (b) False
17. 17.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) #menu (b) h1 (c) .note (d) .menu
18. 18.True or false: #top is an id selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) .main (b) .big (c) li (d) .note
20. 20.True or false: .star is an id selector. (a) False (b) True
21. 21.🎯 Which CSS selector matches this element?
    <p class="star" id="logo">Hello</p> (a) h1 (b) #end (c) #star (d) p
22. 22.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <p> (c) <span class="big"> (d) <h1 class="big">
23. 23.True or false: .card is a class selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .big (b) li (c) #main (d) .intro
25. 25.True or false: h1 is an element selector. (a) False (b) True
26. 26.🎯 What kind of selector is #main? (a) a class selector (b) an element selector (c) an id selector
27. 27.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) .main (b) .note (c) #logo (d) span
28. 28.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
29. 29.🎯 Which CSS selector matches this element?
    <div class="menu" id="logo">Hello</div> (a) #end (b) div (c) .note (d) span
30. 30.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
31. 31.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .
32. 32.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) #star (b) .star (c) #end (d) p
33. 33.True or false: img is a class selector. (a) False (b) True
34. 34.🎯 Which element does the selector .big style? (a) <p class="box"> (b) <span id="big"> (c) <span class="red"> (d) <span class="big">
35. 35.🎯 How many elements on a page should have the same id? (a) 2 (b) any number (c) 5 (d) 1
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) li (b) #top (c) .box (d) .hero
37. 37.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <h1 class="menu"> (c) <p id="box"> (d) <p class="box">
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="big" id="end">Hello</h1> (a) .end (b) #big (c) .red (d) #end
39. 39.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) .menu (b) div (c) li (d) .top
40. 40.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <li id="hero"> (c) <p class="star"> (d) <h1>

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