JSFiddle - React, Tailwind, and code Playground

HTML

<div id="foo">
</div>

CSS

#foo {
    width: 400px;
    min-height: 100px;
    border: solid 1px;
    
}

JavaScript

var dvHTML = 'AAAA <span style="text-decoration: underline;">Hello world</span> BBBB';

$("#foo").html(dvHTML).click(function() {
    this.contentEditable = true;                
});