index.html

<html>
    <head>
        <title>mapsweeper</title>
        <link rel="stylesheet" href="style.css">
        <style>
            body {
                position: absolute;
                margin: 0;
                padding: 0;
                left: 0;
                top: 0;
                width: 100%;
                height: 100%;
            }
        </style>
    </head>
    <body>
        <div id="container" class="container"></div>
        <script src="index.js"></script>
    </body>
</html>