CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 58 · 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?
   <h1 class="big" id="logo">Hello</h1> (a) .red (b) .logo (c) #logo (d) #end
2. 2.🎯 Which CSS selector matches this element?
   <li class="box" id="hero">Hello</li> (a) .hero (b) div (c) li (d) #top
3. 3.🎯 What kind of selector is #top? (a) an id selector (b) a class selector (c) an element selector
4. 4.True or false: #main is an id selector. (a) True (b) False
5. 5.🎯 Which CSS selector matches this element?
   <li class="menu" id="main">Hello</li> (a) div (b) #menu (c) .note (d) li
6. 6.🎯 Which CSS selector matches this element?
   <p class="menu" id="main">Hello</p> (a) .main (b) .note (c) .menu (d) #menu
7. 7.🎯 Which element does the selector .menu style? (a) <h1 id="menu"> (b) <h1 class="note"> (c) <h2 class="big"> (d) <h1 class="menu">
8. 8.🎯 Which sign starts an id selector? (a) @ (b) . (c) & (d) #
9. 9.🎯 What kind of selector is .card? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 Which element does the selector #top style? (a) <div class="top"> (b) <div id="intro"> (c) <span class="big"> (d) <div id="top">
11. 11.True or false: p is a class selector. (a) True (b) False
12. 12.🎯 Which sign starts a class selector? (a) @ (b) & (c) # (d) .
13. 13.🎯 Which CSS selector matches this element?
    <h1 class="menu" id="hero">Hello</h1> (a) .note (b) .hero (c) .menu (d) h2
14. 14.True or false: #end is an id selector. (a) False (b) True
15. 15.True or false: h1 is an id selector. (a) False (b) True
16. 16.True or false: p is an id selector. (a) True (b) False
17. 17.🎯 Which element does the selector span style? (a) <h2 id="main"> (b) <p> (c) <h1 class="star"> (d) <span class="star">
18. 18.🎯 What kind of selector is p? (a) an id selector (b) an element selector (c) a class selector
19. 19.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="note"> (c) <div id="hero"> (d) <li class="note">
20. 20.🎯 What kind of selector is #hero? (a) an element selector (b) an id selector (c) a class selector
21. 21.🎯 How many elements on a page should have the same id? (a) 2 (b) 1 (c) 5 (d) any number
22. 22.🎯 What kind of selector is #end? (a) an id selector (b) a class selector (c) an element selector
23. 23.🎯 Which element does the selector .red style? (a) <li class="star"> (b) <h2 class="red"> (c) <h2 id="red"> (d) <h2 class="box">
24. 24.True or false: #main is a class selector. (a) True (b) False
25. 25.🎯 Which CSS selector matches this element?
    <p class="menu" id="hero">Hello</p> (a) .hero (b) p (c) .note (d) #menu
26. 26.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) span (b) div (c) #note (d) #logo
27. 27.🎯 Which element does the selector div style? (a) <div class="star"> (b) <span> (c) <h1 id="top"> (d) <p class="star">
28. 28.True or false: .note is a class selector. (a) True (b) False
29. 29.True or false: .big is an id selector. (a) True (b) False
30. 30.🎯 Which element does the selector h2 style? (a) <li> (b) <div class="red"> (c) <h2 class="red"> (d) <span id="hero">
31. 31.🎯 Which CSS selector matches this element?
    <p class="red" id="hero">Hello</p> (a) #top (b) .hero (c) #hero (d) #red
32. 32.🎯 Which element does the selector .star style? (a) <div class="menu"> (b) <span class="note"> (c) <div class="star"> (d) <div id="star">
33. 33.🎯 Which element does the selector #end style? (a) <p id="end"> (b) <p id="hero"> (c) <p class="end"> (d) <h1 class="big">
34. 34.🎯 Which element does the selector #intro style? (a) <h2 class="intro"> (b) <h2 id="intro"> (c) <h2 id="main"> (d) <li class="menu">
35. 35.🎯 Which CSS selector matches this element?
    <div class="star" id="end">Hello</div> (a) .star (b) span (c) .end (d) #star
36. 36.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
37. 37.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="logo"> (c) <p id="end"> (d) <h1 class="box">
38. 38.🎯 Which element does the selector .box style? (a) <p class="box"> (b) <h1 class="menu"> (c) <p id="box"> (d) <p class="star">
39. 39.🎯 Which element does the selector #logo style? (a) <h2 id="logo"> (b) <h2 class="logo"> (c) <h2 id="end"> (d) <li class="red">
40. 40.🎯 Which CSS selector matches this element?
    <p class="star" id="end">Hello</p> (a) #star (b) p (c) .end (d) .menu

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