CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 792 · 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 img? (a) an id selector (b) a class selector (c) an element selector
2. 2.🎯 Which element does the selector .big style? (a) <h1 class="box"> (b) <p id="big"> (c) <p class="red"> (d) <p class="big">
3. 3.True or false: #logo is an id selector. (a) False (b) True
4. 4.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
5. 5.🎯 Which element does the selector div style? (a) <span> (b) <h1 id="end"> (c) <div class="menu"> (d) <p class="menu">
6. 6.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h1 class="intro"> (c) <h2 class="red"> (d) <h1 id="intro">
7. 7.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 2 (d) 5
8. 8.True or false: #hero is an element selector. (a) True (b) False
9. 9.True or false: #main is a class selector. (a) True (b) False
10. 10.🎯 Which element does the selector .menu style? (a) <p class="menu"> (b) <h1 class="big"> (c) <p id="menu"> (d) <p class="note">
11. 11.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
12. 12.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector #end style? (a) <li id="hero"> (b) <li id="end"> (c) <li class="end"> (d) <div class="note">
14. 14.🎯 Can many elements share the same class? (a) Yes (b) No
15. 15.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="box"> (c) <li id="hero"> (d) <p class="box">
16. 16.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
17. 17.True or false: #main is an id selector. (a) False (b) True
18. 18.🎯 Which element does the selector .box style? (a) <span class="menu"> (b) <div class="box"> (c) <div class="star"> (d) <div id="box">
19. 19.True or false: .card is an id selector. (a) True (b) False
20. 20.True or false: .big is an id selector. (a) False (b) True
21. 21.True or false: h1 is an element selector. (a) False (b) True
22. 22.🎯 Which CSS selector matches this element?
    <li class="red" id="logo">Hello</li> (a) #red (b) .logo (c) div (d) #logo
23. 23.True or false: h1 is an id selector. (a) False (b) True
24. 24.🎯 Which CSS selector matches this element?
    <span class="red" id="top">Hello</span> (a) #intro (b) #red (c) #top (d) .box
25. 25.True or false: body is an element selector. (a) True (b) False
26. 26.🎯 Which element does the selector .red style? (a) <span id="red"> (b) <span class="box"> (c) <span class="red"> (d) <p class="star">
27. 27.🎯 Which element does the selector .menu style? (a) <h2 class="note"> (b) <h2 id="menu"> (c) <h2 class="menu"> (d) <li class="big">
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .hero (b) .menu (c) #top (d) #hero
29. 29.True or false: #hero is a class selector. (a) False (b) True
30. 30.🎯 What kind of selector is #logo? (a) an element selector (b) an id selector (c) a class selector
31. 31.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector .note style? (a) <li class="note"> (b) <li class="big"> (c) <li id="note"> (d) <div class="red">
33. 33.🎯 Which CSS selector matches this element?
    <div class="red" id="logo">Hello</div> (a) #logo (b) span (c) #red (d) .logo
34. 34.🎯 Which element does the selector li style? (a) <span class="big"> (b) <li class="big"> (c) <div> (d) <p id="intro">
35. 35.True or false: .star is an id selector. (a) True (b) False
36. 36.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <li class="menu" id="end">Hello</li> (a) #hero (b) div (c) .menu (d) .note
38. 38.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which element does the selector #top style? (a) <p id="intro"> (b) <p class="top"> (c) <p id="top"> (d) <h1 class="note">
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="note" id="main">Hello</h2> (a) li (b) .note (c) #note (d) .big

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