CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 597 · 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.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 Which element does the selector .big style? (a) <span id="big"> (b) <span class="red"> (c) <span class="big"> (d) <p class="box">
3. 3.🎯 Which element does the selector .box style? (a) <p class="star"> (b) <p class="box"> (c) <h1 class="menu"> (d) <p id="box">
4. 4.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
5. 5.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="top">Hello</h1> (a) #intro (b) #menu (c) .note (d) h1
7. 7.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
8. 8.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
9. 9.🎯 Which element does the selector h2 style? (a) <div class="big"> (b) <span id="end"> (c) <li> (d) <h2 class="big">
10. 10.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) #top (b) .menu (c) #menu (d) .hero
11. 11.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) p (b) .intro (c) .big (d) #main
12. 12.🎯 Which element does the selector p style? (a) <h1> (b) <p class="big"> (c) <h2 class="big"> (d) <li id="logo">
13. 13.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <div class="star"> (c) <li class="box"> (d) <li class="red">
14. 14.🎯 Which sign starts a class selector? (a) & (b) . (c) @ (d) #
15. 15.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) p (b) .star (c) #box (d) h1
16. 16.True or false: .card is an element selector. (a) False (b) True
17. 17.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
18. 18.🎯 Which CSS selector matches this element?
    <span class="red" id="logo">Hello</span> (a) #end (b) p (c) #red (d) span
19. 19.🎯 Which element does the selector .red style? (a) <h1 class="star"> (b) <p class="box"> (c) <p id="red"> (d) <p class="red">
20. 20.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="intro">Hello</h1> (a) .menu (b) .intro (c) h2 (d) #main
21. 21.🎯 Can many elements share the same class? (a) No (b) Yes
22. 22.True or false: body is a class selector. (a) True (b) False
23. 23.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
24. 24.True or false: .menu is a class selector. (a) True (b) False
25. 25.True or false: #hero is a class selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <span class="note" id="logo">Hello</span> (a) #note (b) .note (c) p (d) .big
27. 27.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span class="star">
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) #star (b) li (c) #end (d) #logo
29. 29.🎯 Which element does the selector .note style? (a) <li class="red"> (b) <h2 class="note"> (c) <h2 class="big"> (d) <h2 id="note">
30. 30.True or false: #logo is an id selector. (a) True (b) False
31. 31.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <p class="note"> (c) <div class="note"> (d) <span>
32. 32.True or false: .note is a class selector. (a) False (b) True
33. 33.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) p (b) #intro (c) h1 (d) #box
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) .big (b) h2 (c) #logo (d) #note
35. 35.🎯 Which element does the selector #hero style? (a) <h1 class="hero"> (b) <h2 class="note"> (c) <h1 id="hero"> (d) <h1 id="top">
36. 36.🎯 Which CSS selector matches this element?
    <p class="red" id="intro">Hello</p> (a) .intro (b) .box (c) #intro (d) h1
37. 37.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span id="note"> (c) <p class="red"> (d) <span class="note">
38. 38.🎯 Which element does the selector p style? (a) <h2 class="star"> (b) <h1> (c) <li id="intro"> (d) <p class="star">
39. 39.🎯 Which element does the selector #top style? (a) <li class="top"> (b) <li id="top"> (c) <div class="box"> (d) <li id="intro">
40. 40.True or false: #top is an element selector. (a) True (b) False

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