CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 735 · 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?
   <li class="red" id="top">Hello</li> (a) li (b) .top (c) #intro (d) #red
2. 2.🎯 Which CSS selector matches this element?
   <span class="big" id="end">Hello</span> (a) .end (b) #big (c) #end (d) .red
3. 3.🎯 Which element does the selector div style? (a) <h1 id="logo"> (b) <span> (c) <p class="big"> (d) <div class="big">
4. 4.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
5. 5.🎯 Which CSS selector matches this element?
   <p class="star" id="end">Hello</p> (a) .menu (b) #star (c) .end (d) .star
6. 6.🎯 Which CSS selector matches this element?
   <div class="star" id="top">Hello</div> (a) .menu (b) #intro (c) div (d) span
7. 7.🎯 Which CSS selector matches this element?
   <div class="red" id="end">Hello</div> (a) .box (b) #hero (c) #red (d) div
8. 8.🎯 Which CSS selector matches this element?
   <span class="note" id="top">Hello</span> (a) #intro (b) .top (c) .note (d) .big
9. 9.🎯 Which CSS selector matches this element?
   <li class="star" id="hero">Hello</li> (a) #star (b) #hero (c) #top (d) div
10. 10.🎯 What kind of selector is #end? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) h2 (b) #main (c) #red (d) .box
12. 12.🎯 What kind of selector is body? (a) an id selector (b) an element selector (c) a class selector
13. 13.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
14. 14.True or false: #end is an id selector. (a) False (b) True
15. 15.🎯 What kind of selector is .card? (a) an id selector (b) a class selector (c) an element selector
16. 16.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="star"> (c) <li class="star"> (d) <div id="hero">
17. 17.🎯 How many elements on a page should have the same id? (a) 1 (b) any number (c) 5 (d) 2
18. 18.🎯 Which CSS selector matches this element?
    <div class="box" id="logo">Hello</div> (a) span (b) #box (c) .star (d) .box
19. 19.🎯 Which CSS selector matches this element?
    <div class="box" id="intro">Hello</div> (a) span (b) #box (c) .intro (d) #intro
20. 20.True or false: #hero is a class selector. (a) True (b) False
21. 21.🎯 Which sign starts a class selector? (a) @ (b) & (c) . (d) #
22. 22.🎯 Which CSS selector matches this element?
    <div class="star" id="main">Hello</div> (a) #main (b) .menu (c) #star (d) #logo
23. 23.True or false: body is an id selector. (a) False (b) True
24. 24.🎯 What kind of selector is .menu? (a) an element selector (b) a class selector (c) an id selector
25. 25.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
26. 26.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
27. 27.🎯 Which element does the selector span style? (a) <h1 class="box"> (b) <p> (c) <h2 id="top"> (d) <span class="box">
28. 28.🎯 Which element does the selector .menu style? (a) <p class="note"> (b) <h1 class="big"> (c) <p class="menu"> (d) <p id="menu">
29. 29.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
30. 30.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
31. 31.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .hero (b) #top (c) li (d) #note
32. 32.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <span class="big"> (c) <div id="top"> (d) <div id="intro">
33. 33.🎯 Which element does the selector #main style? (a) <h1 class="big"> (b) <p id="main"> (c) <p id="logo"> (d) <p class="main">
34. 34.🎯 Which CSS selector matches this element?
    <li class="note" id="intro">Hello</li> (a) .intro (b) .big (c) div (d) .note
35. 35.🎯 Which element does the selector .big style? (a) <span class="big"> (b) <span id="big"> (c) <p class="box"> (d) <span class="red">
36. 36.🎯 Which element does the selector .note style? (a) <div class="red"> (b) <li class="note"> (c) <li class="big"> (d) <li id="note">
37. 37.🎯 Can many elements share the same class? (a) Yes (b) No
38. 38.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h2 class="menu"> (c) <h1 id="top"> (d) <h1 id="intro">
39. 39.🎯 Which element does the selector #top style? (a) <span id="top"> (b) <span class="top"> (c) <span id="intro"> (d) <p class="menu">
40. 40.🎯 Which element does the selector #intro style? (a) <h2 class="big"> (b) <h1 class="intro"> (c) <h1 id="main"> (d) <h1 id="intro">

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