<!doctype html>
<meta charset=utf8>
<title>CM6 demo</title>
<style>
.cm-wrap { height: 300px; border: 1px solid silver}
.cm-scroller { overflow: auto; }
</style>
<h1>CM6</h1>
<div id=editor></div>
<script type=module src="_m/demo.js"></script>