JSFiddle - React, Tailwind, and code Playground

HTML

<div name="" id="original">
Load transcript in here.
</div>

<textarea name="" id="copied" cols="30" rows="10"></textarea>

JavaScript

var text = '';
function copyText(e) {
    text = (document.all) ? document.selection.createRange().text : document.getSelection();
    document.getElementById('copied').value = text;
}
document.onmouseup = copyText;
if (!document.all) {
	document.captureEvents(Event.MOUSEUP);
}