k href="https://cdnjs.cloudflare.com/ajax/libs/xterm/2.8.1/xterm.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/xterm/2.8.1/addons/fit/fit.js"></script>
<script src="https://cdn.rawgit.com/showdownjs/showdown/<version tag>/dist/showdown.min.js"></script>

<style>
    html, body {
        height: 100%;
        background-color: #24323a;
        color: #fff;
        overflow: auto;
    }
    body {
        display: flex;
        flex-direction: column
    }
    body>* {
        fl