CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 317 · 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?
   <span class="note" id="end">Hello</span> (a) .end (b) #hero (c) span (d) #note
2. 2.True or false: #logo is an id selector. (a) False (b) True
3. 3.True or false: .star is a class selector. (a) False (b) True
4. 4.True or false: p is an element selector. (a) False (b) True
5. 5.🎯 Which CSS selector matches this element?
   <p class="menu" id="main">Hello</p> (a) .note (b) #main (c) h1 (d) #menu
6. 6.🎯 Which element does the selector .menu style? (a) <div id="menu"> (b) <span class="big"> (c) <div class="menu"> (d) <div class="note">
7. 7.🎯 Which element does the selector h1 style? (a) <h2> (b) <div id="intro"> (c) <li class="note"> (d) <h1 class="note">
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="star" id="logo">Hello</h1> (a) .logo (b) #end (c) .star (d) .menu
9. 9.🎯 Which CSS selector matches this element?
   <p class="star" id="intro">Hello</p> (a) #star (b) .intro (c) #intro (d) h1
10. 10.True or false: .menu is a class selector. (a) True (b) False
11. 11.🎯 Which element does the selector #top style? (a) <p class="star"> (b) <span id="top"> (c) <span id="intro"> (d) <span class="top">
12. 12.🎯 What kind of selector is .menu? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Can many elements share the same class? (a) Yes (b) No
14. 14.🎯 Which element does the selector #top style? (a) <p class="top"> (b) <p id="intro"> (c) <h1 class="big"> (d) <p id="top">
15. 15.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) .intro (b) li (c) h2 (d) #big
17. 17.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
18. 18.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) .big (b) .top (c) #note (d) .note
19. 19.🎯 Which sign starts a class selector? (a) & (b) @ (c) . (d) #
20. 20.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 2 (d) 1
21. 21.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
22. 22.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
23. 23.True or false: #end is an id selector. (a) True (b) False
24. 24.True or false: .big is an id selector. (a) False (b) True
25. 25.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) #intro (b) #note (c) .big (d) .note
26. 26.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <span class="big"> (d) <p class="box">
27. 27.🎯 Which CSS selector matches this element?
    <span class="big" id="hero">Hello</span> (a) span (b) .red (c) p (d) #top
28. 28.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
29. 29.🎯 Which element does the selector #main style? (a) <h1 class="main"> (b) <h1 id="main"> (c) <h1 id="logo"> (d) <h2 class="star">
30. 30.🎯 Which element does the selector #hero style? (a) <p id="hero"> (b) <p id="top"> (c) <p class="hero"> (d) <h1 class="big">
31. 31.🎯 Which CSS selector matches this element?
    <h1 class="star" id="end">Hello</h1> (a) .star (b) .menu (c) #star (d) h2
32. 32.True or false: #hero is an id selector. (a) True (b) False
33. 33.🎯 Which element does the selector span style? (a) <p> (b) <h2 id="top"> (c) <h1 class="box"> (d) <span class="box">
34. 34.🎯 Which element does the selector div style? (a) <p class="menu"> (b) <div class="menu"> (c) <span> (d) <h1 id="hero">
35. 35.🎯 Which element does the selector h2 style? (a) <div class="box"> (b) <span id="main"> (c) <h2 class="box"> (d) <li>
36. 36.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) #intro (b) #big (c) .big (d) p
37. 37.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
38. 38.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) .logo (b) .star (c) #end (d) p
39. 39.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span id="note"> (c) <span class="note"> (d) <p class="red">
40. 40.True or false: #top is an element selector. (a) False (b) True

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