JSFiddle - React, Tailwind, and code Playground

JavaScript

a=document.createElement('div');
b=document.createElement('div');
c=document.createElement('div');

a.className='a';
b.className='b';
c.className='c';
c.innerHTML='df';

a.appendChild(b);
b.appendChild(c);
document.body.appendChild(a);

a.innerHTML='';
alert(b.innerHTML);