JSFiddle - React, Tailwind, and code Playground

HTML

<div class="left">leftleftleft</div>
<div class="center">center</div>
<div class="right">rightrightright</div>


<a href="#" class="export">export</a>

JavaScript

$('a.export').on('click',function(){
   uriContent = "data:application/octet-stream," + encodeURIComponent( $('.center').html() );
    console.log(uriContent);
   newWindow=window.open(uriContent, 'neuesDokument');
});