<h1>Heading 1</h1>
<h2>Heading 2</h2>
<h3>Heading 3</h3>
h1 {
  color: rgba(255,0,0,1);
}
h2 {
  color: rgba(255,0,0,.6);
}
h3 {
  color: rgba(255,0,0,.1);
}

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External JavaScript

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