<!DOCTYPE html>
<html>
<head>
<style>
div.background {
background: lightblue url(klematis.jpg) no-repeat center;
background-size: cover;
align-items: center;
display: flex;
justify-content: center;
height: 400px;
width: 400px;
}
div.transbox {
background-color: rgba(255, 255, 255, 0.4);
-webkit-backdrop-filter: blur(5px);
backdrop-filter: blur(5px);
padding: 20px;
margin: 30px;
font-weight: bold;
}
</style>
</head>
<body>
<h1>The backdrop-filter Property</h1>
<div class="background">
<div class="transbox">
<p>backdrop-filter: blur(5px)</p>
</div>
</div>
</body>
</html>