CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 976 · 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: p is an id selector. (a) True (b) False
2. 2.🎯 Which CSS selector matches this element?
   <h2 class="big" id="top">Hello</h2> (a) #top (b) .top (c) #intro (d) #big
3. 3.🎯 Which CSS selector matches this element?
   <li class="box" id="logo">Hello</li> (a) #box (b) .box (c) div (d) .logo
4. 4.🎯 Which CSS selector matches this element?
   <p class="note" id="intro">Hello</p> (a) .intro (b) #main (c) #note (d) .note
5. 5.🎯 Which element does the selector span style? (a) <span class="big"> (b) <h2 id="main"> (c) <p> (d) <h1 class="big">
6. 6.True or false: h1 is a class selector. (a) True (b) False
7. 7.True or false: #top is an element selector. (a) False (b) True
8. 8.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <h1 class="note"> (d) <p id="logo">
9. 9.🎯 Which CSS selector matches this element?
   <p class="star" id="top">Hello</p> (a) #star (b) h1 (c) .star (d) .top
10. 10.🎯 What kind of selector is img? (a) an element selector (b) an id selector (c) a class selector
11. 11.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <p class="note"> (c) <span class="star"> (d) <span class="menu">
12. 12.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
13. 13.🎯 Which element does the selector h1 style? (a) <div id="top"> (b) <h1 class="red"> (c) <li class="red"> (d) <h2>
14. 14.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
15. 15.🎯 Which element does the selector div style? (a) <h1 id="end"> (b) <div class="note"> (c) <span> (d) <p class="note">
16. 16.🎯 What kind of selector is .note? (a) a class selector (b) an id selector (c) an element selector
17. 17.True or false: h1 is an element selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) #box (b) .intro (c) h1 (d) #intro
19. 19.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <div class="star"> (c) <li class="box"> (d) <li class="red">
20. 20.🎯 Which CSS selector matches this element?
    <li class="menu" id="main">Hello</li> (a) #menu (b) #main (c) .note (d) div
21. 21.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector
22. 22.🎯 Which element does the selector #end style? (a) <h2 class="end"> (b) <h2 id="hero"> (c) <li class="note"> (d) <h2 id="end">
23. 23.🎯 Which element does the selector h1 style? (a) <li class="note"> (b) <h2> (c) <h1 class="note"> (d) <div id="end">
24. 24.🎯 Which element does the selector #end style? (a) <p id="hero"> (b) <p class="end"> (c) <p id="end"> (d) <h1 class="box">
25. 25.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
26. 26.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .note (b) #logo (c) h1 (d) .menu
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) li (b) h2 (c) .box (d) #red
28. 28.🎯 Which element does the selector .note style? (a) <p class="red"> (b) <span class="note"> (c) <span class="big"> (d) <span id="note">
29. 29.🎯 Which element does the selector .red style? (a) <h2 class="box"> (b) <h2 id="red"> (c) <li class="star"> (d) <h2 class="red">
30. 30.🎯 Which element does the selector .box style? (a) <li class="box"> (b) <li id="box"> (c) <div class="menu"> (d) <li class="star">
31. 31.🎯 Which sign starts a class selector? (a) @ (b) # (c) & (d) .
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="box" id="end">Hello</h1> (a) h2 (b) .star (c) .end (d) .box
33. 33.🎯 What kind of selector is #top? (a) an element selector (b) an id selector (c) a class selector
34. 34.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
35. 35.True or false: .note is a class selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <li class="star" id="top">Hello</li> (a) .menu (b) #intro (c) #star (d) #top
37. 37.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
38. 38.True or false: #end is an element selector. (a) False (b) True
39. 39.🎯 What kind of selector is li? (a) a class selector (b) an id selector (c) an element selector
40. 40.True or false: p is an element selector. (a) True (b) False

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