CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 765 · 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 .star? (a) a class selector (b) an element selector (c) an id selector
2. 2.🎯 How many elements on a page should have the same id? (a) 2 (b) 5 (c) 1 (d) any number
3. 3.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
4. 4.🎯 Which element does the selector #end style? (a) <div class="end"> (b) <div id="end"> (c) <div id="hero"> (d) <span class="box">
5. 5.🎯 Which CSS selector matches this element?
   <p class="note" id="end">Hello</p> (a) #hero (b) .end (c) #end (d) .big
6. 6.🎯 Which sign starts a class selector? (a) & (b) . (c) # (d) @
7. 7.True or false: .star is a class selector. (a) False (b) True
8. 8.🎯 What kind of selector is h1? (a) an id selector (b) a class selector (c) an element selector
9. 9.🎯 Which CSS selector matches this element?
   <div class="red" id="hero">Hello</div> (a) .hero (b) #red (c) .box (d) div
10. 10.🎯 Which CSS selector matches this element?
    <span class="box" id="main">Hello</span> (a) .main (b) span (c) .star (d) #box
11. 11.🎯 What kind of selector is .menu? (a) an id selector (b) a class selector (c) an element selector
12. 12.🎯 Can many elements share the same class? (a) No (b) Yes
13. 13.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) .red (b) .top (c) #big (d) h2
14. 14.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .note (b) #intro (c) span (d) .top
15. 15.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) li (b) h2 (c) .intro (d) #main
16. 16.🎯 Which sign starts an id selector? (a) # (b) . (c) & (d) @
17. 17.🎯 Which element does the selector h2 style? (a) <span id="logo"> (b) <li> (c) <div class="note"> (d) <h2 class="note">
18. 18.🎯 Which element does the selector .big style? (a) <div class="red"> (b) <div id="big"> (c) <span class="box"> (d) <div class="big">
19. 19.🎯 Which element does the selector .star style? (a) <p class="menu"> (b) <p class="star"> (c) <h1 class="note"> (d) <p id="star">
20. 20.🎯 Which CSS selector matches this element?
    <li class="note" id="top">Hello</li> (a) .top (b) #top (c) div (d) .big
21. 21.🎯 Which element does the selector .note style? (a) <span class="big"> (b) <span class="note"> (c) <p class="red"> (d) <span id="note">
22. 22.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .star (b) .box (c) .end (d) #box
23. 23.🎯 What kind of selector is #main? (a) an id selector (b) an element selector (c) a class selector
24. 24.🎯 Which CSS selector matches this element?
    <h1 class="star" id="top">Hello</h1> (a) #star (b) h2 (c) .menu (d) h1
25. 25.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .main (b) #logo (c) .note (d) .menu
26. 26.🎯 Which CSS selector matches this element?
    <p class="menu" id="top">Hello</p> (a) #intro (b) h1 (c) .top (d) p
27. 27.🎯 Which element does the selector #top style? (a) <div id="top"> (b) <span class="menu"> (c) <div class="top"> (d) <div id="intro">
28. 28.True or false: #logo is an id selector. (a) True (b) False
29. 29.🎯 What kind of selector is li? (a) a class selector (b) an element selector (c) an id selector
30. 30.True or false: .big is a class selector. (a) False (b) True
31. 31.True or false: #hero is an id selector. (a) False (b) True
32. 32.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span class="top"> (c) <p class="big"> (d) <span id="intro">
33. 33.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
34. 34.🎯 Which element does the selector div style? (a) <p class="big"> (b) <div class="big"> (c) <span> (d) <h1 id="top">
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) span (b) #note (c) div (d) .big
36. 36.🎯 Which CSS selector matches this element?
    <h1 class="note" id="hero">Hello</h1> (a) .big (b) .hero (c) #note (d) h1
37. 37.🎯 Which element does the selector .star style? (a) <div id="star"> (b) <div class="menu"> (c) <span class="note"> (d) <div class="star">
38. 38.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="big"> (c) <h1 class="big"> (d) <div id="hero">
39. 39.🎯 Which CSS selector matches this element?
    <h1 class="box" id="main">Hello</h1> (a) .star (b) #main (c) #box (d) #logo
40. 40.🎯 What kind of selector is #top? (a) a class selector (b) an element selector (c) an id selector

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