CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 533 · 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="big" id="top">Hello</h1> (a) .big (b) .top (c) h2 (d) #big
2. 2.🎯 What kind of selector is #end? (a) an id selector (b) an element selector (c) a class selector
3. 3.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 Which sign starts a class selector? (a) @ (b) # (c) . (d) &
5. 5.True or false: .star is a class selector. (a) False (b) True
6. 6.🎯 Which element does the selector .star style? (a) <h1 class="menu"> (b) <h2 class="note"> (c) <h1 id="star"> (d) <h1 class="star">
7. 7.🎯 Which element does the selector span style? (a) <h1 class="star"> (b) <h2 id="top"> (c) <span class="star"> (d) <p>
8. 8.🎯 Which CSS selector matches this element?
   <span class="menu" id="top">Hello</span> (a) p (b) .top (c) .note (d) span
9. 9.🎯 Which CSS selector matches this element?
   <h1 class="big" id="end">Hello</h1> (a) h2 (b) .red (c) #big (d) #end
10. 10.🎯 Which element does the selector li style? (a) <p id="main"> (b) <li class="box"> (c) <div> (d) <span class="box">
11. 11.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) .logo (b) #end (c) #note (d) #logo
12. 12.True or false: #hero is an element selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <div class="note" id="top">Hello</div> (a) span (b) .big (c) .note (d) #intro
14. 14.🎯 Can many elements share the same class? (a) No (b) Yes
15. 15.🎯 Which element does the selector .menu style? (a) <h1 class="note"> (b) <h1 class="menu"> (c) <h1 id="menu"> (d) <h2 class="big">
16. 16.🎯 Which CSS selector matches this element?
    <h1 class="big" id="hero">Hello</h1> (a) #top (b) #big (c) #hero (d) .red
17. 17.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
18. 18.True or false: .star is an element selector. (a) True (b) False
19. 19.True or false: #hero is a class selector. (a) False (b) True
20. 20.🎯 Which CSS selector matches this element?
    <div class="red" id="main">Hello</div> (a) #logo (b) span (c) .box (d) #main
21. 21.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) #end (b) #menu (c) #logo (d) .logo
22. 22.🎯 What kind of selector is body? (a) an element selector (b) an id selector (c) a class selector
23. 23.True or false: #logo is an id selector. (a) False (b) True
24. 24.🎯 How many elements on a page should have the same id? (a) any number (b) 2 (c) 5 (d) 1
25. 25.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
26. 26.🎯 Which CSS selector matches this element?
    <li class="star" id="intro">Hello</li> (a) #main (b) .intro (c) #intro (d) #star
27. 27.🎯 Which element does the selector .star style? (a) <span class="menu"> (b) <p class="note"> (c) <span id="star"> (d) <span class="star">
28. 28.🎯 Which element does the selector #logo style? (a) <h1 class="red"> (b) <p id="end"> (c) <p id="logo"> (d) <p class="logo">
29. 29.🎯 What kind of selector is #logo? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which element does the selector #logo style? (a) <span id="end"> (b) <span id="logo"> (c) <span class="logo"> (d) <p class="red">
31. 31.True or false: .menu is a class selector. (a) True (b) False
32. 32.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) #top (b) .note (c) h1 (d) .top
33. 33.True or false: #end is a class selector. (a) True (b) False
34. 34.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
35. 35.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <li class="red"> (c) <h2 id="intro"> (d) <h2 id="main">
36. 36.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) #intro (b) #note (c) .top (d) #top
38. 38.🎯 Which element does the selector li style? (a) <li class="star"> (b) <span class="star"> (c) <div> (d) <p id="top">
39. 39.🎯 What kind of selector is .card? (a) a class selector (b) an element selector (c) an id selector
40. 40.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector

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