CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 137 · 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?
   <h2 class="star" id="intro">Hello</h2> (a) .intro (b) h2 (c) li (d) #main
2. 2.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
3. 3.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
4. 4.True or false: .note is an id selector. (a) False (b) True
5. 5.True or false: #logo is a class selector. (a) True (b) False
6. 6.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
7. 7.True or false: .menu is a class selector. (a) False (b) True
8. 8.True or false: body is a class selector. (a) True (b) False
9. 9.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which CSS selector matches this element?
    <p class="note" id="end">Hello</p> (a) .end (b) #note (c) .note (d) #hero
11. 11.🎯 Which CSS selector matches this element?
    <li class="box" id="logo">Hello</li> (a) #logo (b) #end (c) .star (d) #box
12. 12.🎯 Which CSS selector matches this element?
    <h2 class="big" id="main">Hello</h2> (a) h2 (b) .red (c) #big (d) .main
13. 13.🎯 Which element does the selector #main style? (a) <h2 class="big"> (b) <h1 class="main"> (c) <h1 id="logo"> (d) <h1 id="main">
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="top">Hello</h1> (a) .top (b) h2 (c) #menu (d) #top
15. 15.🎯 Which element does the selector #intro style? (a) <span class="red"> (b) <div id="intro"> (c) <div class="intro"> (d) <div id="main">
16. 16.True or false: #logo is an id selector. (a) False (b) True
17. 17.🎯 Can many elements share the same class? (a) Yes (b) No
18. 18.🎯 Which CSS selector matches this element?
    <h1 class="box" id="logo">Hello</h1> (a) .star (b) #box (c) .box (d) .logo
19. 19.🎯 Which CSS selector matches this element?
    <div class="big" id="logo">Hello</div> (a) .logo (b) span (c) #logo (d) #big
20. 20.🎯 Which element does the selector li style? (a) <div> (b) <span class="note"> (c) <li class="note"> (d) <p id="main">
21. 21.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 2 (d) 1
22. 22.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) div (b) .big (c) #intro (d) #main
23. 23.True or false: .note is a class selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) #note (b) .main (c) #main (d) .big
25. 25.True or false: img 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) #intro (d) .top
27. 27.🎯 Which sign starts a class selector? (a) . (b) @ (c) & (d) #
28. 28.🎯 Which element does the selector .star style? (a) <p class="note"> (b) <span class="star"> (c) <span id="star"> (d) <span class="menu">
29. 29.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .big (b) .red (c) #big (d) #end
30. 30.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 id="note"> (c) <h2 class="big"> (d) <h2 class="note">
31. 31.True or false: .menu is an id selector. (a) False (b) True
32. 32.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) .star (b) .end (c) .menu (d) h1
33. 33.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
34. 34.🎯 What kind of selector is #end? (a) a class selector (b) an element selector (c) an id selector
35. 35.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) p (b) #star (c) #end (d) .star
36. 36.🎯 Which CSS selector matches this element?
    <li class="big" id="end">Hello</li> (a) .red (b) .end (c) div (d) #end
37. 37.🎯 What kind of selector is .big? (a) an id selector (b) a class selector (c) an element selector
38. 38.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) div (b) #menu (c) .main (d) li
39. 39.True or false: .card is an id selector. (a) False (b) True
40. 40.🎯 Which element does the selector p style? (a) <h2 class="menu"> (b) <p class="menu"> (c) <li id="top"> (d) <h1>

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