CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 848 · 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 element does the selector div style? (a) <span> (b) <p class="big"> (c) <div class="big"> (d) <h1 id="main">
2. 2.🎯 Which CSS selector matches this element?
   <div class="menu" id="end">Hello</div> (a) div (b) span (c) .end (d) #menu
3. 3.🎯 Which element does the selector .star style? (a) <div class="star"> (b) <span class="note"> (c) <div id="star"> (d) <div class="menu">
4. 4.🎯 What kind of selector is #top? (a) an element selector (b) a class selector (c) an id selector
5. 5.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
6. 6.True or false: body is an element selector. (a) False (b) True
7. 7.🎯 Which sign starts an id selector? (a) # (b) @ (c) & (d) .
8. 8.🎯 What kind of selector is .big? (a) an element selector (b) an id selector (c) a class selector
9. 9.🎯 Which element does the selector span style? (a) <p> (b) <span class="note"> (c) <h1 class="note"> (d) <h2 id="hero">
10. 10.🎯 Which CSS selector matches this element?
    <h2 class="big" id="intro">Hello</h2> (a) li (b) #main (c) #intro (d) .intro
11. 11.🎯 Which element does the selector #main style? (a) <h2 class="main"> (b) <h2 id="main"> (c) <h2 id="logo"> (d) <li class="star">
12. 12.🎯 What kind of selector is p? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which element does the selector li style? (a) <li class="box"> (b) <span class="box"> (c) <p id="main"> (d) <div>
14. 14.🎯 Which element does the selector h2 style? (a) <h2 class="star"> (b) <div class="star"> (c) <li> (d) <span id="intro">
15. 15.True or false: #logo is a class selector. (a) True (b) False
16. 16.🎯 Which CSS selector matches this element?
    <h2 class="note" id="top">Hello</h2> (a) .top (b) #intro (c) .note (d) li
17. 17.🎯 Which CSS selector matches this element?
    <h1 class="note" id="top">Hello</h1> (a) h1 (b) h2 (c) .big (d) .top
18. 18.True or false: li is an element selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <h2 class="note" id="logo">Hello</h2> (a) h2 (b) #note (c) #end (d) li
20. 20.🎯 Which CSS selector matches this element?
    <div class="note" id="logo">Hello</div> (a) div (b) .big (c) .logo (d) #note
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="star" id="main">Hello</h1> (a) #logo (b) .main (c) .star (d) #star
22. 22.True or false: p is an element selector. (a) True (b) False
23. 23.🎯 Can many elements share the same class? (a) No (b) Yes
24. 24.True or false: .big is a class selector. (a) True (b) False
25. 25.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="top"> (c) <h2 class="box"> (d) <h1 id="intro">
26. 26.🎯 What kind of selector is #logo? (a) a class selector (b) an id selector (c) an element selector
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) .menu (b) li (c) #star (d) h2
28. 28.🎯 What kind of selector is #hero? (a) a class selector (b) an element selector (c) an id selector
29. 29.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="hero">Hello</h1> (a) .note (b) h2 (c) h1 (d) #menu
30. 30.True or false: #top is a class selector. (a) True (b) False
31. 31.🎯 Which sign starts a class selector? (a) & (b) # (c) . (d) @
32. 32.🎯 Which CSS selector matches this element?
    <p class="box" id="hero">Hello</p> (a) .star (b) #box (c) .box (d) #top
33. 33.True or false: .big is an id selector. (a) True (b) False
34. 34.True or false: img is a class selector. (a) True (b) False
35. 35.🎯 Which element does the selector .star style? (a) <h2 class="star"> (b) <li class="note"> (c) <h2 class="menu"> (d) <h2 id="star">
36. 36.🎯 Which CSS selector matches this element?
    <h2 class="big" id="main">Hello</h2> (a) .main (b) .red (c) h2 (d) #big
37. 37.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <div class="menu"> (c) <span> (d) <p class="menu">
38. 38.🎯 Which element does the selector p style? (a) <li id="intro"> (b) <p class="menu"> (c) <h2 class="menu"> (d) <h1>
39. 39.🎯 Which element does the selector .star style? (a) <p class="note"> (b) <span class="menu"> (c) <span id="star"> (d) <span class="star">
40. 40.True or false: #logo is an id selector. (a) True (b) False

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