CSS Worksheet: Selectors Class and Id

HTML and CSS lesson 13: Selectors: element, class and id · Set 226 · 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 .note style? (a) <p class="red"> (b) <span id="note"> (c) <span class="big"> (d) <span class="note">
2. 2.🎯 Which element does the selector p style? (a) <h1> (b) <h2 class="note"> (c) <li id="intro"> (d) <p class="note">
3. 3.🎯 Which sign starts an id selector? (a) . (b) # (c) & (d) @
4. 4.🎯 Which element does the selector h1 style? (a) <h2> (b) <h1 class="note"> (c) <li class="note"> (d) <div id="hero">
5. 5.🎯 Which element does the selector .red style? (a) <li id="red"> (b) <li class="box"> (c) <li class="red"> (d) <div class="star">
6. 6.🎯 Which CSS selector matches this element?
   <h1 class="box" id="intro">Hello</h1> (a) #box (b) .star (c) #main (d) h1
7. 7.🎯 What kind of selector is .star? (a) an element selector (b) a class selector (c) an id selector
8. 8.True or false: body is an id selector. (a) True (b) False
9. 9.🎯 What kind of selector is h1? (a) an element selector (b) a class selector (c) an id selector
10. 10.🎯 What kind of selector is #hero? (a) a class selector (b) an id selector (c) an element selector
11. 11.🎯 Can many elements share the same class? (a) Yes (b) No
12. 12.True or false: .card is a class selector. (a) False (b) True
13. 13.🎯 Which CSS selector matches this element?
    <span class="note" id="intro">Hello</span> (a) span (b) #main (c) .big (d) #note
14. 14.🎯 What kind of selector is img? (a) an element selector (b) a class selector (c) an id selector
15. 15.🎯 What kind of selector is p? (a) a class selector (b) an element selector (c) an id selector
16. 16.🎯 Which element does the selector .star style? (a) <h1 id="star"> (b) <h1 class="menu"> (c) <h1 class="star"> (d) <h2 class="note">
17. 17.True or false: #top is an id selector. (a) True (b) False
18. 18.🎯 Which CSS selector matches this element?
    <p class="star" id="intro">Hello</p> (a) #main (b) .star (c) .menu (d) h1
19. 19.🎯 How many elements on a page should have the same id? (a) 5 (b) any number (c) 1 (d) 2
20. 20.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) #top (b) li (c) #note (d) .big
21. 21.🎯 Which element does the selector .red style? (a) <div class="red"> (b) <span class="star"> (c) <div id="red"> (d) <div class="box">
22. 22.🎯 What kind of selector is .note? (a) an id selector (b) an element selector (c) a class selector
23. 23.🎯 What kind of selector is #logo? (a) an id selector (b) a class selector (c) an element selector
24. 24.True or false: #main is a class selector. (a) False (b) True
25. 25.True or false: .big is an id selector. (a) False (b) True
26. 26.🎯 Which element does the selector #main style? (a) <p class="box"> (b) <span id="logo"> (c) <span id="main"> (d) <span class="main">
27. 27.🎯 Which CSS selector matches this element?
    <span class="menu" id="logo">Hello</span> (a) .note (b) #end (c) #menu (d) span
28. 28.🎯 Which element does the selector .note style? (a) <h2 id="note"> (b) <h2 class="big"> (c) <li class="red"> (d) <h2 class="note">
29. 29.🎯 Which element does the selector div style? (a) <span> (b) <div class="menu"> (c) <p class="menu"> (d) <h1 id="hero">
30. 30.🎯 Which CSS selector matches this element?
    <p class="red" id="logo">Hello</p> (a) #red (b) .box (c) #logo (d) h1
31. 31.🎯 Which CSS selector matches this element?
    <li class="note" id="hero">Hello</li> (a) .note (b) .big (c) .hero (d) div
32. 32.🎯 Which CSS selector matches this element?
    <h2 class="star" id="hero">Hello</h2> (a) .hero (b) .menu (c) #hero (d) #top
33. 33.🎯 Which element does the selector .note style? (a) <h1 class="note"> (b) <h2 class="red"> (c) <h1 id="note"> (d) <h1 class="big">
34. 34.🎯 What kind of selector is .card? (a) an id selector (b) an element selector (c) a class selector
35. 35.🎯 Which element does the selector #intro style? (a) <span id="main"> (b) <p class="menu"> (c) <span class="intro"> (d) <span id="intro">
36. 36.🎯 What kind of selector is li? (a) an element selector (b) an id selector (c) a class selector
37. 37.🎯 What kind of selector is .big? (a) an element selector (b) a class selector (c) an id selector
38. 38.🎯 Which sign starts a class selector? (a) # (b) & (c) @ (d) .
39. 39.True or false: p is an id selector. (a) True (b) False
40. 40.🎯 Which element does the selector #intro style? (a) <li class="note"> (b) <h2 id="main"> (c) <h2 class="intro"> (d) <h2 id="intro">

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