index.html

<html>
    <head>
        <meta charset='utf-8'>
        <style>
            @import url(style.css);
            p.highlight {
                color: red;
            }
            svg {
                background-color: rgb(41, 41, 36);
                position:fixed; top:0; left:0; height:100%; width:100%
            }
            body {
                display: flex;
                margin: 0;
                justify-content: center;
                height: 100%;
                width:100%;
            }

        </style>
        <script src="dist/svgelement.js"></script>
        <script src="dist/observable.js"></script>
        <script src="dist/index.es.js"></script>
    </head>
    <body>
        <div style=" height: 100%;
        width:100%;">
            <!-- <h1>Asteroid game</h1> -->
            <svg id="canvas" />
        </div>
    </body>
</html>