CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 869 · 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?
   <li class="big" id="main">Hello</li> (a) #main (b) .main (c) #big (d) #logo
2. 2.🎯 Which CSS selector matches this element?
   <p class="note" id="logo">Hello</p> (a) h1 (b) #note (c) .logo (d) .note
3. 3.🎯 Which element does the selector #main style? (a) <p class="main"> (b) <p id="main"> (c) <p id="logo"> (d) <h1 class="red">
4. 4.🎯 What kind of selector is .card? (a) an element selector (b) an id selector (c) a class selector
5. 5.🎯 Which CSS selector matches this element?
   <div class="note" id="logo">Hello</div> (a) span (b) .big (c) .logo (d) div
6. 6.🎯 Which element does the selector .star style? (a) <h1 class="note"> (b) <p id="star"> (c) <p class="star"> (d) <p class="menu">
7. 7.🎯 Which CSS selector matches this element?
   <div class="note" id="intro">Hello</div> (a) .intro (b) #intro (c) span (d) #note
8. 8.🎯 Which CSS selector matches this element?
   <h1 class="menu" id="hero">Hello</h1> (a) #top (b) .hero (c) h1 (d) .note
9. 9.🎯 What kind of selector is #main? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 What kind of selector is img? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Which CSS selector matches this element?
    <h1 class="box" id="top">Hello</h1> (a) .box (b) h2 (c) .top (d) .star
12. 12.🎯 How many elements on a page should have the same id? (a) any number (b) 5 (c) 1 (d) 2
13. 13.🎯 What kind of selector is .star? (a) an element selector (b) an id selector (c) a class selector
14. 14.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .top (b) span (c) #menu (d) #intro
15. 15.🎯 Which sign starts an id selector? (a) @ (b) & (c) . (d) #
16. 16.🎯 Which CSS selector matches this element?
    <span class="big" id="main">Hello</span> (a) .red (b) .main (c) .big (d) #logo
17. 17.True or false: #hero is an element selector. (a) False (b) True
18. 18.🎯 Which CSS selector matches this element?
    <span class="menu" id="top">Hello</span> (a) .menu (b) #intro (c) .note (d) p
19. 19.🎯 Which element does the selector #logo style? (a) <p class="logo"> (b) <p id="end"> (c) <p id="logo"> (d) <h1 class="star">
20. 20.🎯 Which CSS selector matches this element?
    <h2 class="red" id="hero">Hello</h2> (a) .hero (b) .red (c) #red (d) li
21. 21.🎯 Which element does the selector #hero style? (a) <p class="star"> (b) <span class="hero"> (c) <span id="hero"> (d) <span id="top">
22. 22.🎯 What kind of selector is body? (a) a class selector (b) an element selector (c) an id selector
23. 23.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) #hero (b) .hero (c) #note (d) div
24. 24.🎯 Can many elements share the same class? (a) No (b) Yes
25. 25.🎯 Which element does the selector #intro style? (a) <li class="intro"> (b) <li id="main"> (c) <li id="intro"> (d) <div class="menu">
26. 26.🎯 What kind of selector is #hero? (a) an element selector (b) a class selector (c) an id selector
27. 27.🎯 What kind of selector is h1? (a) a class selector (b) an id selector (c) an element selector
28. 28.True or false: p is an element selector. (a) False (b) True
29. 29.True or false: .big is a class selector. (a) True (b) False
30. 30.🎯 Which CSS selector matches this element?
    <div class="box" id="end">Hello</div> (a) #box (b) .end (c) #end (d) span
31. 31.🎯 Which CSS selector matches this element?
    <p class="menu" id="logo">Hello</p> (a) #menu (b) #end (c) h1 (d) p
32. 32.True or false: body is an id selector. (a) False (b) True
33. 33.🎯 Which element does the selector .red style? (a) <div class="box"> (b) <div class="red"> (c) <span class="star"> (d) <div id="red">
34. 34.🎯 What kind of selector is p? (a) an element selector (b) a class selector (c) an id selector
35. 35.True or false: img is an element selector. (a) False (b) True
36. 36.🎯 Which CSS selector matches this element?
    <span class="big" id="top">Hello</span> (a) .top (b) span (c) #big (d) .red
37. 37.🎯 Which element does the selector p style? (a) <h2 class="big"> (b) <li id="main"> (c) <h1> (d) <p class="big">
38. 38.🎯 Which CSS selector matches this element?
    <span class="note" id="top">Hello</span> (a) .big (b) .note (c) #note (d) #intro
39. 39.True or false: #hero is a class selector. (a) True (b) False
40. 40.🎯 Which CSS selector matches this element?
    <h1 class="note" id="main">Hello</h1> (a) h2 (b) .big (c) .main (d) .note

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