    <link rel="stylesheet" href="css/styles.css"> 
    <script src="https://cdnjs.cloudflare.com/ajax/libs/monaco-editor/0.44.0/min/vs/loader.min.js"></script>
    <style>
        #diff-box {
            width: 98vw;
            height: 86vh;
            border: 1px solid #ccc;
        }
    </style>
</head>
<body>
<div id="nav-box"></div>
<div id="header-box" class="header" > </div>
<div id="diff-box"></div>
<script src="js/diff.js" type="module"></script>
</body>
</html>
