JSFiddle - React, Tailwind, and code Playground

JavaScript

// HTMLPanel doesn't createElement(tag) and then set its innerHTML to the HTMLPanel's content
// It actually creates a div and set its innerHTML to "<"+tag+">"+html+"</"+tag+">"
// See the comments in the code for the rationale.
var div = document.createElement('div');
div.innerHTML = "<tr><td><span id='gwt-uid-67'></span></td></tr>";
window.alert(div.innerHTML);