CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 563 · 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="star" id="intro">Hello</h1> (a) .intro (b) .star (c) h2 (d) #main
2. 2.🎯 Which CSS selector matches this element?
   <h1 class="box" id="logo">Hello</h1> (a) .box (b) h2 (c) #box (d) .star
3. 3.🎯 Which CSS selector matches this element?
   <p class="red" id="main">Hello</p> (a) #red (b) .main (c) p (d) h1
4. 4.True or false: .menu is a class selector. (a) True (b) False
5. 5.🎯 How many elements on a page should have the same id? (a) 1 (b) 5 (c) any number (d) 2
6. 6.True or false: p is an element selector. (a) False (b) True
7. 7.🎯 Which element does the selector .star style? (a) <span class="star"> (b) <p class="note"> (c) <span id="star"> (d) <span class="menu">
8. 8.🎯 Which CSS selector matches this element?
   <span class="note" id="intro">Hello</span> (a) .note (b) p (c) .intro (d) #main
9. 9.True or false: .note is a class selector. (a) True (b) False
10. 10.🎯 What kind of selector is .note? (a) an element selector (b) a class selector (c) an id selector
11. 11.🎯 Which element does the selector h2 style? (a) <li> (b) <span id="logo"> (c) <div class="star"> (d) <h2 class="star">
12. 12.🎯 What kind of selector is #top? (a) a class selector (b) an id selector (c) an element selector
13. 13.🎯 Can many elements share the same class? (a) Yes (b) No
14. 14.🎯 Which sign starts an id selector? (a) . (b) & (c) @ (d) #
15. 15.🎯 What kind of selector is img? (a) a class selector (b) an element selector (c) an id selector
16. 16.True or false: .card is an element selector. (a) False (b) True
17. 17.🎯 Which sign starts a class selector? (a) @ (b) . (c) & (d) #
18. 18.🎯 Which element does the selector #logo style? (a) <span class="logo"> (b) <span id="logo"> (c) <span id="end"> (d) <p class="red">
19. 19.🎯 Which element does the selector h1 style? (a) <div id="main"> (b) <h1 class="star"> (c) <li class="star"> (d) <h2>
20. 20.🎯 Which CSS selector matches this element?
    <div class="big" id="hero">Hello</div> (a) span (b) #hero (c) #top (d) .hero
21. 21.🎯 What kind of selector is #end? (a) an element selector (b) a class selector (c) an id selector
22. 22.🎯 Which element does the selector .star style? (a) <p id="star"> (b) <h1 class="note"> (c) <p class="menu"> (d) <p class="star">
23. 23.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) #big (b) .logo (c) li (d) #logo
24. 24.🎯 Which element does the selector #main style? (a) <h1 id="logo"> (b) <h2 class="red"> (c) <h1 id="main"> (d) <h1 class="main">
25. 25.True or false: #main is an element selector. (a) False (b) True
26. 26.🎯 Which CSS selector matches this element?
    <div class="big" id="intro">Hello</div> (a) .red (b) #big (c) .big (d) .intro
27. 27.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <p id="logo"> (d) <h1 class="menu">
28. 28.🎯 Which CSS selector matches this element?
    <div class="menu" id="hero">Hello</div> (a) #menu (b) span (c) #hero (d) .note
29. 29.🎯 Which element does the selector h1 style? (a) <div id="hero"> (b) <li class="menu"> (c) <h2> (d) <h1 class="menu">
30. 30.🎯 Which element does the selector div style? (a) <span> (b) <p class="box"> (c) <div class="box"> (d) <h1 id="main">
31. 31.🎯 Which element does the selector .star style? (a) <li id="star"> (b) <div class="note"> (c) <li class="star"> (d) <li class="menu">
32. 32.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="note"> (c) <li class="red"> (d) <h2 class="big">
33. 33.True or false: img is a class selector. (a) False (b) True
34. 34.True or false: li is a class selector. (a) False (b) True
35. 35.🎯 Which CSS selector matches this element?
    <div class="note" id="main">Hello</div> (a) span (b) #main (c) #note (d) .big
36. 36.🎯 Which element does the selector #end style? (a) <h1 class="end"> (b) <h2 class="red"> (c) <h1 id="hero"> (d) <h1 id="end">
37. 37.🎯 Which CSS selector matches this element?
    <h2 class="star" id="intro">Hello</h2> (a) .intro (b) #main (c) li (d) h2
38. 38.True or false: .card is an id selector. (a) True (b) False
39. 39.🎯 What kind of selector is .menu? (a) a class selector (b) an element selector (c) an id selector
40. 40.🎯 Which CSS selector matches this element?
    <h2 class="menu" id="end">Hello</h2> (a) .end (b) h2 (c) #hero (d) li

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