JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<body id="body">
</body>
</html>

JavaScript

//Interfacing to the DOM 

var manipulateDOM = function() {
      var gameContent = document.createElement("div");
      gameContent.id = "gameContent";
      var gameCanvas = document.createElement("canvas");
      gameCanvas.id = "gameCanvas";
      var body = document.getElementById("body");
      body.appendChild(gameContent);
      gameContent.appendChild(gameCanvas); 
};

manipulateDOM();
document.write(gameContent);