JSFiddle - React, Tailwind, and code Playground

JavaScript

var context = document.createElement('table');
var row;
context.className = 'table';

row = context.insertRow();
row.insertCell().innerHTML = 'foo';
row.insertCell().innerHTML = 'bar';

var header = context.createTHead();
var row = header.insertRow();
var th = document.createElement('th');
th.innerHTML = 'Inserido';

row.appendChild(th);
document.body.appendChild(context);