CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 751 · 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?
   <p class="menu" id="top">Hello</p> (a) h1 (b) .note (c) p (d) .top
2. 2.🎯 Which element does the selector .big style? (a) <p class="big"> (b) <p class="red"> (c) <h1 class="box"> (d) <p id="big">
3. 3.🎯 Which element does the selector .note style? (a) <li class="big"> (b) <li class="note"> (c) <li id="note"> (d) <div class="red">
4. 4.🎯 Which element does the selector .big style? (a) <div class="box"> (b) <li class="red"> (c) <li id="big"> (d) <li class="big">
5. 5.🎯 Which CSS selector matches this element?
   <p class="menu" id="end">Hello</p> (a) #hero (b) #menu (c) .menu (d) h1
6. 6.True or false: .card is a class selector. (a) True (b) False
7. 7.🎯 Can many elements share the same class? (a) No (b) Yes
8. 8.🎯 Which element does the selector #main style? (a) <h2 id="logo"> (b) <h2 class="main"> (c) <h2 id="main"> (d) <li class="menu">
9. 9.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) 2 (d) any number
10. 10.🎯 Which CSS selector matches this element?
    <h1 class="red" id="hero">Hello</h1> (a) #top (b) #red (c) #hero (d) .box
11. 11.True or false: #logo is an element selector. (a) True (b) False
12. 12.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) .logo (b) #red (c) #end (d) p
15. 15.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
16. 16.True or false: #main is an id selector. (a) False (b) True
17. 17.True or false: #hero is an id selector. (a) True (b) False
18. 18.🎯 Which element does the selector #intro style? (a) <li id="intro"> (b) <li id="main"> (c) <li class="intro"> (d) <div class="big">
19. 19.True or false: #end is a class selector. (a) False (b) True
20. 20.True or false: h1 is an element selector. (a) True (b) False
21. 21.🎯 Which sign starts a class selector? (a) # (b) & (c) . (d) @
22. 22.🎯 Which element does the selector #intro style? (a) <h1 class="box"> (b) <p id="main"> (c) <p id="intro"> (d) <p class="intro">
23. 23.True or false: img is an id selector. (a) False (b) True
24. 24.🎯 What kind of selector is .star? (a) a class selector (b) an id selector (c) an element selector
25. 25.🎯 Which CSS selector matches this element?
    <p class="note" id="main">Hello</p> (a) .main (b) #logo (c) h1 (d) .note
26. 26.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) .menu (b) .note (c) .hero (d) #menu
27. 27.True or false: .star is a class selector. (a) False (b) True
28. 28.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
29. 29.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
30. 30.🎯 Which element does the selector .red style? (a) <span class="box"> (b) <span class="red"> (c) <p class="star"> (d) <span id="red">
31. 31.🎯 Which sign starts an id selector? (a) . (b) @ (c) & (d) #
32. 32.🎯 Which element does the selector .big style? (a) <h2 id="big"> (b) <h2 class="red"> (c) <h2 class="big"> (d) <li class="box">
33. 33.True or false: #end is an id selector. (a) True (b) False
34. 34.🎯 Which CSS selector matches this element?
    <h2 class="red" id="hero">Hello</h2> (a) .box (b) #top (c) #hero (d) .hero
35. 35.🎯 What kind of selector is .big? (a) an id selector (b) an element selector (c) a class selector
36. 36.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <p> (c) <h1 class="menu"> (d) <span class="menu">
37. 37.🎯 Which CSS selector matches this element?
    <p class="box" id="logo">Hello</p> (a) .star (b) #logo (c) h1 (d) .logo
38. 38.🎯 What kind of selector is li? (a) an id selector (b) an element selector (c) a class selector
39. 39.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) #main (b) li (c) .star (d) #star
40. 40.True or false: .note is a class selector. (a) False (b) True

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