JSFiddle - React, Tailwind, and code Playground

HTML

<div id="scrollbox">
Lorem ipsum dolor sit amet <br>
Consectetuer augue nibh lacus at <br>
Pretium Donec felis dolor penatibus <br>
Phasellus consequat Vivamus dui lacinia <br>
Ornare nonummy laoreet lacus Donec <br>
Ut ut libero Curabitur id <br>
Dui pretium hendrerit sapien Pellentesque <br>

</div>

CSS

#scrollbox{width:200px;height:150px;overflow:auto;}

JavaScript

jQuery(
  function($)
  {
   var sb =  $('#scrollbox').height();
    alert(sb);
    alert( $(window).height());
                                
  }
);