<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>A Great Demo on CodePen</title>
</head>
<body>
  
  <img src="https://www.vprogids.nl/.imaging/stk/gids/opengraph/dam/gids/subsites/cinema/Series/The-Bridge-season-4--Jens-Juncker.jpg/jcr:content/The%20Bridge%20season%204%20%C2%A9Jens%20Juncker.jpg.jpg" alt="">
  
</body>
</html>
body {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  min-height: 100vh;
}

img {
  width: 500px;
  height: auto;
  filter: contrast(500%);
  transition: filter 0.2s ease-out;
}
img:hover {
  filter: contrast(100%);
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.