<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>mjs</title>
<script src="https://cdn.jsdelivr.net/npm/matter-js@0.17.1/build/matter.min.js"></script>
<style>
html, body {
margin: 0;
padding: 0;
overflow: hidden;
}
body {
height: 100vh;
width: 100vw;
}
box {
margin: 0px;
padding: 0px;
box-sizing: border-box;
position: absolute;
display: block;
background-color: red;
transform-origin: 20px 20px;
}
</style>
</head>
<body>
<script src="01.js"></script>
</body>
</html>