popup.html

<!DOCTYPE html>
<html>

<head>
  <title>Popup</title>
  <link rel="stylesheet" href="popup.css" />
  <script type="application/javascript" charset="utf-8" src="jquery.min.js"></script>
  <script type="application/javascript" charset="utf-8" src="popup.js"></script>
</head>

<!-- <body class="body-popup" style="display: flex;
flex-direction:column;
justify-content: center;
align-items: center;">
  <form id="form">
    <input type="url" id="link_url" placeholder="Enter link" />
  </form>
</body> -->

<body>
  <button id="enable" class="hide">Enable</button>
  <button id="disable">Disable</button>
  <span id="status" class="hide"></span>
  <hr />
  <button id="config">Settings</button>
  <hr />
  <button id="feedback" class="secondary"> Send feedback</button>
  <button id="about" class="secondary">About</button>
</body>

</html>