CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 574 · 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 sign starts a class selector? (a) & (b) . (c) @ (d) #
2. 2.🎯 Which CSS selector matches this element?
   <span class="menu" id="logo">Hello</span> (a) #logo (b) #menu (c) #end (d) p
3. 3.True or false: .big is an element selector. (a) True (b) False
4. 4.🎯 Which element does the selector div style? (a) <p class="box"> (b) <h1 id="top"> (c) <span> (d) <div class="box">
5. 5.🎯 What kind of selector is h1? (a) an id selector (b) an element selector (c) a class selector
6. 6.🎯 Which element does the selector h1 style? (a) <li class="box"> (b) <h1 class="box"> (c) <h2> (d) <div id="logo">
7. 7.🎯 Which CSS selector matches this element?
   <h2 class="menu" id="intro">Hello</h2> (a) #menu (b) h2 (c) li (d) .intro
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="box" id="end">Hello</h1> (a) .end (b) #hero (c) #end (d) #box
9. 9.True or false: .card is a class selector. (a) False (b) True
10. 10.🎯 Can many elements share the same class? (a) No (b) Yes
11. 11.🎯 Which element does the selector #intro style? (a) <p class="intro"> (b) <h1 class="red"> (c) <p id="intro"> (d) <p id="main">
12. 12.🎯 Which element does the selector h2 style? (a) <h2 class="note"> (b) <li> (c) <span id="main"> (d) <div class="note">
13. 13.🎯 Which CSS selector matches this element?
    <span class="box" id="end">Hello</span> (a) #hero (b) span (c) #box (d) .star
14. 14.🎯 Which CSS selector matches this element?
    <h1 class="big" id="main">Hello</h1> (a) h1 (b) #big (c) .red (d) h2
15. 15.🎯 How many elements on a page should have the same id? (a) any number (b) 1 (c) 5 (d) 2
16. 16.🎯 Which element does the selector div style? (a) <span> (b) <p class="star"> (c) <div class="star"> (d) <h1 id="logo">
17. 17.🎯 Which CSS selector matches this element?
    <h2 class="star" id="logo">Hello</h2> (a) #star (b) .logo (c) .menu (d) .star
18. 18.True or false: #main is an id selector. (a) False (b) True
19. 19.🎯 Which CSS selector matches this element?
    <p class="big" id="hero">Hello</p> (a) p (b) #big (c) .red (d) h1
20. 20.🎯 Which element does the selector #end style? (a) <span id="hero"> (b) <span class="end"> (c) <p class="box"> (d) <span id="end">
21. 21.True or false: #top is an id selector. (a) False (b) True
22. 22.🎯 Which CSS selector matches this element?
    <h2 class="big" id="logo">Hello</h2> (a) #logo (b) li (c) #big (d) .logo
23. 23.🎯 Which CSS selector matches this element?
    <p class="box" id="intro">Hello</p> (a) h1 (b) p (c) .intro (d) #box
24. 24.True or false: body is an element selector. (a) True (b) False
25. 25.🎯 Which element does the selector .box style? (a) <p class="menu"> (b) <span class="star"> (c) <span id="box"> (d) <span class="box">
26. 26.True or false: .big is a class selector. (a) True (b) False
27. 27.🎯 Which CSS selector matches this element?
    <h1 class="star" id="logo">Hello</h1> (a) .star (b) .menu (c) .logo (d) #end
28. 28.🎯 Which CSS selector matches this element?
    <span class="note" id="hero">Hello</span> (a) span (b) .hero (c) #note (d) .big
29. 29.🎯 Which element does the selector #main style? (a) <h2 class="box"> (b) <h1 class="main"> (c) <h1 id="main"> (d) <h1 id="logo">
30. 30.🎯 What kind of selector is .note? (a) an id selector (b) a class selector (c) an element selector
31. 31.🎯 Which element does the selector #end style? (a) <li id="end"> (b) <li id="hero"> (c) <li class="end"> (d) <div class="red">
32. 32.True or false: .menu is an element selector. (a) True (b) False
33. 33.🎯 What kind of selector is body? (a) an element selector (b) a class selector (c) an id selector
34. 34.🎯 What kind of selector is #top? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) #intro (b) #big (c) h1 (d) p
36. 36.🎯 Which element does the selector p style? (a) <h1> (b) <p class="menu"> (c) <li id="top"> (d) <h2 class="menu">
37. 37.True or false: #logo is an element selector. (a) False (b) True
38. 38.True or false: .big is an id selector. (a) False (b) True
39. 39.🎯 Which element does the selector #top style? (a) <h1 class="top"> (b) <h1 id="intro"> (c) <h2 class="box"> (d) <h1 id="top">
40. 40.🎯 Which CSS selector matches this element?
    <p class="big" id="top">Hello</p> (a) #top (b) .red (c) .top (d) h1

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