packages/demo-react/index.html (12 lines of code) (raw):
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>React demo</title>
<link rel="stylesheet" type="text/css" href="/dist/main.css">
</head>
<body>
<div id="app"></div>
<script src="/dist/main.bundle.js"></script>
</body>
</html>