popup.html

<html>
    <head>
        <title>Config - Badger: Badges for Trello</title>
        <link rel="stylesheet" href="popup.css" type="text/css">
        <script type="text/javascript" charset="utf-8" src="ace/ace.js"></script>
    </head>
    <body>
        <h1>Configure Badger</h1>

        <div id="config-field" class="hgh"></div>

        <div class="controls">
            <a id="save-button"   class="button save">Save</a>
        </div>

        <script src="popup.js"></script>
    </body>
</html>