CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 998 · 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?
   <span class="big" id="end">Hello</span> (a) p (b) .red (c) span (d) #hero
2. 2.🎯 Which element does the selector .star style? (a) <span id="star"> (b) <span class="menu"> (c) <p class="note"> (d) <span class="star">
3. 3.🎯 What kind of selector is #hero? (a) an id selector (b) a class selector (c) an element selector
4. 4.True or false: li is an id selector. (a) False (b) True
5. 5.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <h1 id="end"> (d) <div class="box">
6. 6.🎯 What kind of selector is li? (a) an id selector (b) a class selector (c) an element selector
7. 7.True or false: .card is a class selector. (a) False (b) True
8. 8.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="top">Hello</h2> (a) .note (b) #top (c) .top (d) #menu
9. 9.True or false: img is an element selector. (a) True (b) False
10. 10.🎯 Which element does the selector #top style? (a) <div id="top"> (b) <div class="top"> (c) <div id="intro"> (d) <span class="box">
11. 11.🎯 Which element does the selector h2 style? (a) <h2 class="menu"> (b) <div class="menu"> (c) <span id="top"> (d) <li>
12. 12.🎯 What kind of selector is .star? (a) an id selector (b) a class selector (c) an element selector
13. 13.🎯 Which CSS selector matches this element?
    <div class="menu" id="main">Hello</div> (a) span (b) #menu (c) .note (d) #main
14. 14.🎯 Which element does the selector .star style? (a) <h2 id="star"> (b) <h2 class="menu"> (c) <li class="note"> (d) <h2 class="star">
15. 15.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) p (b) #big (c) .top (d) #top
16. 16.🎯 Which element does the selector h1 style? (a) <h1 class="menu"> (b) <h2> (c) <li class="menu"> (d) <div id="logo">
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="red" id="logo">Hello</h2> (a) #red (b) h2 (c) .logo (d) .box
18. 18.True or false: .menu is a class selector. (a) True (b) False
19. 19.🎯 Which CSS selector matches this element?
    <li class="big" id="logo">Hello</li> (a) .logo (b) div (c) #end (d) .big
20. 20.🎯 Can many elements share the same class? (a) No (b) Yes
21. 21.🎯 Which element does the selector .note style? (a) <p id="note"> (b) <p class="note"> (c) <h1 class="red"> (d) <p class="big">
22. 22.🎯 How many elements on a page should have the same id? (a) 5 (b) 2 (c) any number (d) 1
23. 23.🎯 Which element does the selector #intro style? (a) <span class="intro"> (b) <span id="main"> (c) <p class="red"> (d) <span id="intro">
24. 24.🎯 Which element does the selector .big style? (a) <h2 class="box"> (b) <h1 class="big"> (c) <h1 id="big"> (d) <h1 class="red">
25. 25.🎯 Which element does the selector #end style? (a) <div class="note"> (b) <li id="end"> (c) <li id="hero"> (d) <li class="end">
26. 26.🎯 Which element does the selector #hero style? (a) <div id="hero"> (b) <span class="star"> (c) <div class="hero"> (d) <div id="top">
27. 27.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="intro">Hello</h2> (a) #menu (b) .note (c) li (d) #intro
28. 28.🎯 Which CSS selector matches this element?
    <p class="star" id="hero">Hello</p> (a) h1 (b) .star (c) .menu (d) .hero
29. 29.🎯 Which CSS selector matches this element?
    <h2 class="box" id="top">Hello</h2> (a) li (b) .star (c) #top (d) .top
30. 30.🎯 What kind of selector is h1? (a) an element selector (b) an id selector (c) a class selector
31. 31.True or false: .note is an element selector. (a) False (b) True
32. 32.🎯 Which CSS selector matches this element?
    <li class="note" id="logo">Hello</li> (a) #end (b) .logo (c) .note (d) .big
33. 33.True or false: .card is an element selector. (a) False (b) True
34. 34.🎯 Which sign starts a class selector? (a) . (b) & (c) # (d) @
35. 35.🎯 Which element does the selector h1 style? (a) <h2> (b) <li class="box"> (c) <div id="top"> (d) <h1 class="box">
36. 36.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
37. 37.🎯 Which CSS selector matches this element?
    <div class="note" id="intro">Hello</div> (a) #intro (b) span (c) #main (d) .intro
38. 38.🎯 Which CSS selector matches this element?
    <h2 class="red" id="end">Hello</h2> (a) .end (b) .box (c) #hero (d) h2
39. 39.🎯 Which CSS selector matches this element?
    <span class="big" id="end">Hello</span> (a) #hero (b) .big (c) p (d) #big
40. 40.🎯 What kind of selector is #logo? (a) a class selector (b) an element selector (c) an id selector

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