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  <title>Class and ID Selectors</title>
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  <p>Number 1 - I'm a class!</p>
  <div>Number 2 - I'm one ID.</div>
  <p>Number 3 - I'm a class, but cooler!</p>
  <div>Number 4 - I'm another ID.</div>
  <p>Number 5 - I'm a class!</p>
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