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<!DOCTYPE html>
<html>
<head>
<style>
img {
  filter: contrast(200%);
}
</style>
</head>
<body>
<h1>The filter Property</h1>
<p>Adjust the contrast of the image:</p>
<img src="pineapple.jpg" alt="Pineapple" width="300" height="300">
</body>
</html>