CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 743 · 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 element does the selector .big style? (a) <li class="big"> (b) <li class="red"> (c) <li id="big"> (d) <div class="box">
2. 2.🎯 Which sign starts an id selector? (a) # (b) . (c) @ (d) &
3. 3.🎯 Can many elements share the same class? (a) No (b) Yes
4. 4.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 1 (d) 5
5. 5.🎯 What kind of selector is .menu? (a) an element selector (b) an id selector (c) a class selector
6. 6.🎯 Which CSS selector matches this element?
   <p class="box" id="intro">Hello</p> (a) .box (b) h1 (c) .star (d) #box
7. 7.True or false: .card is a class selector. (a) False (b) True
8. 8.True or false: body is an element selector. (a) False (b) True
9. 9.🎯 Which CSS selector matches this element?
   <p class="box" id="main">Hello</p> (a) #box (b) .main (c) .box (d) #logo
10. 10.🎯 Which CSS selector matches this element?
    <div class="big" id="end">Hello</div> (a) .big (b) .end (c) .red (d) #big
11. 11.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <p class="note"> (c) <span class="star"> (d) <span class="menu">
12. 12.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
13. 13.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) div (b) .star (c) .menu (d) .logo
14. 14.True or false: .big is a class selector. (a) True (b) False
15. 15.🎯 Which element does the selector .red style? (a) <span class="star"> (b) <div class="box"> (c) <div class="red"> (d) <div id="red">
16. 16.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
17. 17.🎯 Which CSS selector matches this element?
    <p class="red" id="main">Hello</p> (a) .main (b) #logo (c) p (d) #red
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="top">Hello</p> (a) #star (b) #intro (c) .top (d) p
19. 19.🎯 Which element does the selector .menu style? (a) <h1 class="menu"> (b) <h1 class="note"> (c) <h1 id="menu"> (d) <h2 class="big">
20. 20.True or false: .card is an id selector. (a) True (b) False
21. 21.True or false: .star is an id selector. (a) True (b) False
22. 22.True or false: .menu is a class selector. (a) True (b) False
23. 23.🎯 Which CSS selector matches this element?
    <p class="big" id="main">Hello</p> (a) h1 (b) #main (c) .main (d) #big
24. 24.True or false: .note is a class selector. (a) True (b) False
25. 25.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
26. 26.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
27. 27.True or false: #top is an id selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <h1 class="note" id="intro">Hello</h1> (a) h1 (b) .intro (c) .big (d) #note
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) #logo (b) #note (c) h1 (d) .big
30. 30.🎯 Which element does the selector li style? (a) <p id="intro"> (b) <div> (c) <span class="star"> (d) <li class="star">
31. 31.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <li class="star"> (c) <h2 id="red"> (d) <h2 class="red">
33. 33.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) #main (b) .intro (c) .note (d) #intro
34. 34.🎯 Which element does the selector h1 style? (a) <div id="intro"> (b) <h2> (c) <li class="menu"> (d) <h1 class="menu">
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="box" id="logo">Hello</h2> (a) li (b) .logo (c) #box (d) #logo
36. 36.True or false: .menu is an element selector. (a) True (b) False
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="box" id="hero">Hello</h2> (a) #top (b) #hero (c) .star (d) #box
38. 38.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
39. 39.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
40. 40.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) .logo (b) div (c) .star (d) span

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