<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body,
html {
height: 100%;
margin: 0;
}
.bg {
background-image: url("https://www.w3docs.com/uploads/media/default/0001/01/477719675fecaac0362957c214fb9aa56fca99b5.jpeg");
height: 100%;
background-position: center;
background-repeat: no-repeat;
background-size: cover;
}
</style>
</head>
<body>
<div class="bg"></div>
</body>
</html>