app.html

<html>
<head>
  <link rel="stylesheet" href="./css/app.css">
</head>
<body>
  <div id="containerDiv" class="container">
    <div id="contentDiv" class="content">
      <input type="text" id="subjID" name="subjid" value="" placeholder="ID" oninput="updateFilenamePreview();">
      <input type="text" id="sessID" name="sessid" value="" placeholder="Session" oninput="updateFilenamePreview();">
      <input type="text" id="taskID" name="taskid" value="" placeholder="Task" oninput="updateFilenamePreview();">
      <p id="fileNamePreview"></p>
      <div class="circle-btn" id="recordBtn"></div>
    </div>
  </div>
  <script type="text/javascript" src="./core.js"></script>
  <script type="text/javascript" src="./menu.js"></script>
  <script type="text/javascript" src="./cloudChecker.js"></script>
</body>
</html>