CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 823 · 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 span style? (a) <h2 id="end"> (b) <p> (c) <span class="star"> (d) <h1 class="star">
2. 2.🎯 Which CSS selector matches this element?
   <li class="box" id="end">Hello</li> (a) li (b) div (c) #hero (d) .star
3. 3.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
4. 4.🎯 Which CSS selector matches this element?
   <div class="note" id="logo">Hello</div> (a) #note (b) div (c) .big (d) .logo
5. 5.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="box"> (c) <li class="box"> (d) <div id="intro">
6. 6.True or false: .menu is an element selector. (a) True (b) False
7. 7.🎯 Which CSS selector matches this element?
   <div class="big" id="hero">Hello</div> (a) #big (b) #hero (c) #top (d) .red
8. 8.True or false: #top is an element selector. (a) False (b) True
9. 9.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
10. 10.🎯 Which element does the selector p style? (a) <h1> (b) <li id="intro"> (c) <p class="big"> (d) <h2 class="big">
11. 11.🎯 Which CSS selector matches this element?
    <p class="note" id="logo">Hello</p> (a) #end (b) #logo (c) #note (d) .big
12. 12.True or false: #hero is an id selector. (a) True (b) False
13. 13.🎯 Which CSS selector matches this element?
    <p class="note" id="intro">Hello</p> (a) .intro (b) .big (c) #main (d) .note
14. 14.🎯 Which element does the selector span style? (a) <h2 id="top"> (b) <p> (c) <h1 class="menu"> (d) <span class="menu">
15. 15.True or false: li is an element selector. (a) False (b) True
16. 16.🎯 Which CSS selector matches this element?
    <div class="star" id="hero">Hello</div> (a) #star (b) .menu (c) div (d) span
17. 17.🎯 Which element does the selector span style? (a) <h1 class="big"> (b) <p> (c) <h2 id="top"> (d) <span class="big">
18. 18.🎯 Which element does the selector #hero style? (a) <div id="hero"> (b) <div id="top"> (c) <div class="hero"> (d) <span class="big">
19. 19.🎯 Which element does the selector #intro style? (a) <h2 id="intro"> (b) <h2 id="main"> (c) <h2 class="intro"> (d) <li class="big">
20. 20.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
21. 21.🎯 Which CSS selector matches this element?
    <h1 class="box" id="intro">Hello</h1> (a) .star (b) #box (c) #main (d) .box
22. 22.🎯 Which element does the selector div style? (a) <span> (b) <div class="red"> (c) <p class="red"> (d) <h1 id="intro">
23. 23.True or false: p is an id selector. (a) True (b) False
24. 24.🎯 Which CSS selector matches this element?
    <li class="menu" id="intro">Hello</li> (a) #main (b) div (c) li (d) #menu
25. 25.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
26. 26.🎯 Which element does the selector #intro style? (a) <h1 class="note"> (b) <p id="intro"> (c) <p id="main"> (d) <p class="intro">
27. 27.🎯 Which element does the selector #intro style? (a) <h1 id="main"> (b) <h2 class="menu"> (c) <h1 class="intro"> (d) <h1 id="intro">
28. 28.🎯 Which element does the selector #logo style? (a) <li id="end"> (b) <div class="box"> (c) <li id="logo"> (d) <li class="logo">
29. 29.True or false: #logo is an id selector. (a) False (b) True
30. 30.🎯 Which CSS selector matches this element?
    <div class="red" id="top">Hello</div> (a) div (b) .box (c) span (d) .top
31. 31.🎯 Which sign starts an id selector? (a) @ (b) & (c) . (d) #
32. 32.🎯 Which CSS selector matches this element?
    <h1 class="red" id="main">Hello</h1> (a) #logo (b) .main (c) h1 (d) #red
33. 33.True or false: li is a class selector. (a) False (b) True
34. 34.🎯 What kind of selector is img? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Can many elements share the same class? (a) No (b) Yes
36. 36.🎯 Which CSS selector matches this element?
    <div class="star" id="top">Hello</div> (a) span (b) #star (c) #top (d) .top
37. 37.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
38. 38.🎯 Which CSS selector matches this element?
    <p class="menu" id="main">Hello</p> (a) .note (b) p (c) h1 (d) #logo
39. 39.🎯 Which CSS selector matches this element?
    <li class="big" id="hero">Hello</li> (a) .hero (b) #big (c) li (d) div
40. 40.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) h1 (b) #menu (c) .menu (d) .hero

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