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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
.container {
  background-color: red;
  padding: 15px;
}
</style>
</head>
<body>
<h1>Change blend mode with JavaScript</h1>
<p>The mixBlendMode property specifies how an element's content should blend with its background:</p>
<p>Click the "Try it" button to blend in the image with the red container.</p>
<button onclick="myFunction()">Try it</button>
<div class="container">
  <img src="pineapple.jpg" alt="Pineapple" id="myImg" width="300" height="300">
</div>
<script>
function myFunction() {
  document.getElementById("myImg").style.mixBlendMode = "darken";
}
</script>
</body>
</html>