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<!DOCTYPE html>
<html>
<head>
<style>
h1 {
  border: 2px solid green;
  background-color: beige;
}
p {
  background-color: yellow;
}
</style>
</head>
<body>
<h1>Demo of the element selector</h1>
<div>
  <p id="firstname">My name is Donald.</p>
  <p>I live in Duckburg.</p>
</div>
<p>My best friend is Mickey.</p>
<span>This is some text in a span.</span>
</body>
</html>