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<!DOCTYPE html>
<html>
<head>
<style>
.mask1 {
  -webkit-mask-image: url(w3logo.png);
  mask-image: url(w3logo.png);
  mask-size: 70%;
  mask-repeat: no-repeat;    
}
</style>
</head>
<body>
<h1>The mask-image Property</h1>
<h3>An image with a mask layer image:</h3>
<div class="mask1">
<img src="img_5terre.jpg" alt="Cinque Terre" width="600" height="400">
</div>
<h3>Original image:</h3>
<img src="img_5terre.jpg" alt="Cinque Terre" width="600" height="400">
</body>
</html>