CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 90 · 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?
   <h2 class="menu" id="end">Hello</h2> (a) #menu (b) li (c) #end (d) .end
2. 2.True or false: body is an element selector. (a) False (b) True
3. 3.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="big"> (c) <li id="main"> (d) <p class="big">
4. 4.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 Which sign starts an id selector? (a) @ (b) & (c) # (d) .
6. 6.🎯 What kind of selector is .big? (a) a class selector (b) an id selector (c) an element selector
7. 7.True or false: p is an id selector. (a) True (b) False
8. 8.True or false: li is an element selector. (a) False (b) True
9. 9.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <li class="note"> (c) <h1 class="note"> (d) <h2>
10. 10.🎯 What kind of selector is #main? (a) an element selector (b) an id selector (c) a class selector
11. 11.True or false: p is an element selector. (a) False (b) True
12. 12.🎯 What kind of selector is #end? (a) an element selector (b) an id selector (c) a class selector
13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="end">Hello</span> (a) p (b) #hero (c) .big (d) span
14. 14.True or false: #top is an id selector. (a) True (b) False
15. 15.🎯 Which element does the selector .star style? (a) <div id="star"> (b) <div class="menu"> (c) <span class="note"> (d) <div class="star">
16. 16.🎯 Which element does the selector .note style? (a) <li id="note"> (b) <div class="red"> (c) <li class="note"> (d) <li class="big">
17. 17.🎯 Which CSS selector matches this element?
    <p class="box" id="end">Hello</p> (a) .box (b) #box (c) h1 (d) #hero
18. 18.🎯 Which element does the selector .red style? (a) <li class="red"> (b) <li class="box"> (c) <div class="star"> (d) <li id="red">
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) h2 (b) .hero (c) #star (d) #top
20. 20.🎯 Which element does the selector span style? (a) <h2 id="hero"> (b) <p> (c) <span class="big"> (d) <h1 class="big">
21. 21.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
22. 22.🎯 Which element does the selector #logo style? (a) <div id="logo"> (b) <div id="end"> (c) <span class="note"> (d) <div class="logo">
23. 23.🎯 What kind of selector is p? (a) a class selector (b) an id selector (c) an element selector
24. 24.🎯 Which CSS selector matches this element?
    <li class="red" id="main">Hello</li> (a) .box (b) .main (c) div (d) li
25. 25.🎯 Can many elements share the same class? (a) Yes (b) No
26. 26.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) .menu (b) .main (c) #logo (d) .note
27. 27.🎯 Which element does the selector .menu style? (a) <p id="menu"> (b) <h1 class="big"> (c) <p class="note"> (d) <p class="menu">
28. 28.🎯 Which CSS selector matches this element?
    <h2 class="big" id="top">Hello</h2> (a) #big (b) .red (c) h2 (d) #intro
29. 29.🎯 Which element does the selector div style? (a) <div class="red"> (b) <p class="red"> (c) <span> (d) <h1 id="end">
30. 30.🎯 Which CSS selector matches this element?
    <p class="menu" id="intro">Hello</p> (a) h1 (b) #main (c) #menu (d) #intro
31. 31.True or false: li is a class selector. (a) True (b) False
32. 32.🎯 Which element does the selector #top style? (a) <span class="box"> (b) <div id="intro"> (c) <div id="top"> (d) <div class="top">
33. 33.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <p class="note"> (c) <h1 class="red"> (d) <p class="big">
34. 34.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) #menu (b) .top (c) #top (d) #intro
35. 35.🎯 Which element does the selector #top style? (a) <li id="top"> (b) <div class="menu"> (c) <li class="top"> (d) <li id="intro">
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) .intro (b) #main (c) .menu (d) .note
37. 37.🎯 Which CSS selector matches this element?
    <li class="star" id="logo">Hello</li> (a) #star (b) .logo (c) .menu (d) li
38. 38.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) #box (b) #end (c) h2 (d) #hero
39. 39.🎯 Which CSS selector matches this element?
    <span class="box" id="logo">Hello</span> (a) .logo (b) #box (c) #end (d) .box
40. 40.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) .note (b) #menu (c) .logo (d) .menu

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