JSFiddle - React, Tailwind, and code Playground

HTML

<p id="text">Bacon ipsum dolor sit amet drumstick t-bone tongue spare ribs biltong. Kielbasa ball tip biltong drumstick meatloaf jowl prosciutto tenderloin, tri-tip ham rump. Doner tenderloin pig turkey fatback, kielbasa swine frankfurter flank salami. Ground round shoulder tri-tip, pork chop sausage leberkas capicola chicken.</p>

JavaScript

// NOTE: This assumes LTR text!

var $el = $("#text");
var originalText = $el.html();

$el.html(originalText + "<span id='cursor'></span>");
alert($("#cursor").offset().left + "px");
$el.html(originalText);