JSFiddle - React, Tailwind, and code Playground
HTML
<div class="js-mimic" contenteditable>
<h1>Header</h1>
<h2>Subheader</h2>
<p>Some text</p>
</div>
JavaScript
var mimic = $(".js-mimic");
mimic.on("blur", function(){
console.log("h1 "+mimic.find("h1").html())
console.log("h2 "+mimic.find("h2").html())
console.log("p "+mimic.find("p").html())
});