<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
button {
background-image: url('https://images.unsplash.com/photo-1582747652673-603191169c49?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=500&q=60');
background-size: cover;
width: 400px;
height: 300px;
font-size: 2em;
}
</style>
</head>
<body>
<button type="submit">Button</button>
</body>
</html>