index.html

<html>
    <head>
        
        <script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script>
        <link rel="stylesheet" type="text/css" href="./style.css">
        <script src="./main.js" /></script>
    </head>
    <body>
        <!-- Player widget -->
        <div id="div-player-container">
            <div class="center-div" style="width:58%">
                <div id="div-eq-container"  >
                    <div id="visualisation"></div>
                    <div id="div-vis-round" class="center-div" >
                        <div>
                            <div id="round-visualisation"></div>
                        </div>
                    </div>
                </div>
                <audio crossorigin="anonymous" controls="controls" preload="auto" id="player" type="audio/mpeg"></audio>
            </div>
        </div>
            <button class="play-button center-div" onclick="play_song(this)">play</button>
        </div>
    </body>
</html>