index.html

  
 <!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8" />
        <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
        <title>Mol* Viewer</title>
        <style>
            * {
                margin: 0;
                padding: 0;
                box-sizing: border-box;
            }
            html, body {
                width: 100%;
                height: 100%;
                overflow: hidden;
            }
            hr {
                margin: 10px;
            }
            h1, h2, h3, h4, h5 {
                margin-top: 5px;
                margin-bottom: 3px;
            }
            button {
                padding: 2px;
            }
            #app {
                position: absolute;
                left: 100px;
                top: 100px;
                width: 800px;
                height: 600px;
            }
        </style>
        <link rel="stylesheet" type="text/css" href="app.css" />
    </head>
    <body>
        <div id="app"></div>
        <script type="text/javascript" src="./index.js"></script>
    </body>
</html>