```
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>rectangle</title>
</head>
<style>
.rectangle{
box-sizing: border-box;
width: 100px;
height: 60px;
border-radius: 10px;
border: 1px solid red;
box-shadow: 4px 4px 4px black;
}
</style>
<body>
<div class="rectangle"></div>
</body>
</html>
```
