index.html

<link href="index.css" rel="stylesheet" type="text/css" />
<script type="module" src="index.js"></script>
<!-- Added script.js -->
<script type="module" src="script.js"></script>

<div class="container">
  <div>
    <div class="title"></div>
    <div id="keywordResults"></div>
  </div>
</div>