CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 322 · 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.True or false: #main is an id selector. (a) True (b) False
2. 2.🎯 Which element does the selector div style? (a) <div class="menu"> (b) <p class="menu"> (c) <h1 id="main"> (d) <span>
3. 3.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
4. 4.True or false: .note is an element selector. (a) True (b) False
5. 5.🎯 Which element does the selector #intro style? (a) <span class="big"> (b) <div id="main"> (c) <div id="intro"> (d) <div class="intro">
6. 6.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="hero">Hello</h2> (a) .menu (b) .hero (c) .note (d) #top
7. 7.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
8. 8.🎯 Which element does the selector p style? (a) <p class="big"> (b) <h2 class="big"> (c) <li id="main"> (d) <h1>
9. 9.🎯 Which sign starts an id selector? (a) & (b) . (c) # (d) @
10. 10.True or false: body is an element selector. (a) False (b) True
11. 11.🎯 What kind of selector is body? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 Which CSS selector matches this element?
    <p class="box" id="top">Hello</p> (a) .top (b) .star (c) h1 (d) p
14. 14.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
15. 15.🎯 Which element does the selector #main style? (a) <div id="logo"> (b) <div id="main"> (c) <div class="main"> (d) <span class="note">
16. 16.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p id="star"> (c) <h1 class="note"> (d) <p class="star">
17. 17.🎯 Which CSS selector matches this element?
    <span class="star" id="logo">Hello</span> (a) .star (b) .logo (c) .menu (d) p
18. 18.🎯 Which element does the selector .big style? (a) <p id="big"> (b) <p class="red"> (c) <p class="big"> (d) <h1 class="box">
19. 19.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
20. 20.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="note"> (c) <li class="note"> (d) <div id="end">
21. 21.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
22. 22.🎯 Which CSS selector matches this element?
    <span class="big" id="logo">Hello</span> (a) #big (b) .logo (c) .red (d) span
23. 23.🎯 Which element does the selector li style? (a) <div> (b) <li class="box"> (c) <p id="top"> (d) <span class="box">
24. 24.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="menu"> (c) <h1 class="menu"> (d) <div id="top">
25. 25.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) #box (b) #end (c) .star (d) h2
26. 26.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
27. 27.True or false: #hero is a class selector. (a) True (b) False
28. 28.🎯 Which CSS selector matches this element?
    <span class="red" id="main">Hello</span> (a) p (b) .box (c) #main (d) #logo
29. 29.🎯 Which element does the selector #top style? (a) <div id="top"> (b) <div class="top"> (c) <div id="intro"> (d) <span class="note">
30. 30.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="top">Hello</h2> (a) #menu (b) .note (c) li (d) #top
31. 31.🎯 What kind of selector is #hero? (a) an id selector (b) an element selector (c) a class selector
32. 32.🎯 Which element does the selector #end style? (a) <h2 class="end"> (b) <li class="red"> (c) <h2 id="hero"> (d) <h2 id="end">
33. 33.🎯 Which element does the selector h2 style? (a) <div class="menu"> (b) <li> (c) <h2 class="menu"> (d) <span id="intro">
34. 34.True or false: .card is a class selector. (a) True (b) False
35. 35.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) h2 (b) #end (c) .big (d) li
36. 36.🎯 Which CSS selector matches this element?
    <span class="menu" id="intro">Hello</span> (a) .intro (b) span (c) #main (d) .note
37. 37.🎯 What kind of selector is .menu? (a) an id selector (b) an element selector (c) a class selector
38. 38.🎯 Which element does the selector li style? (a) <p id="logo"> (b) <div> (c) <span class="note"> (d) <li class="note">
39. 39.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="big" id="logo">Hello</h1> (a) h1 (b) #big (c) #end (d) .logo

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