JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://preview.babylonjs.com/babylon.js"></script>
<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html" charset="utf-8"/>
    <title>Babylon - Getting Started</title>
</head>
<body>
    <canvas id="renderCanvas"></canvas>
</body>
</html>

CSS

html, body {
            overflow: hidden;
            width   : 100%;
            height  : 100%;
            margin  : 0;
            padding : 0;
        }

        #renderCanvas {
            width:500px; 
            height:500px;
            touch-action: none;
        }

JavaScript

// get the canvas DOM element
var canvas = document.getElementById('renderCanvas');

// load the 3D engine
var engine = new BABYLON.Engine(canvas, true);

// createScene function that creates and return the scene
var createScene = function(){
  // create a basic BJS Scene object
  var scene = new BABYLON.Scene(engine);

    // This creates and positions a free camera (non-mesh)
    var camera = new BABYLON.FreeCamera("camera1", new BABYLON.Vector3(0, 0, 0), scene);

    var cameraPosition =36, meshZOffset = 1000, offsetValue = 100 ; 

    
    var planeWidth = engine.getRenderWidth() -offsetValue,
    planeHeight = engine.getRenderHeight()- offsetValue;
    
    var plane = BABYLON.MeshBuilder.CreatePlane('plane',{width: planeWidth,height: planeHeight},scene);
    plane.position.z = meshZOffset;

    var distance = meshZOffset - cameraPosition; 
    var height= engine.getRenderHeight();
    var width= engine.getRenderWidth();

   // var diag = Math.sqrt((height*height)+(width*width));
   // console.log(diag);
    var FOV = 2 * Math.atan( 500 / ( 2 * distance ));
    console.log(FOV);
    
    camera.fov = FOV;
    camera.position.z = cameraPosition;


    return scene;
}

// call the createScene function
var scene = createScene();

// run the render loop
engine.runRenderLoop(function(){
  scene.render();
});

// the canvas/window resize event handler
window.addEventListener('resize', function(){
  engine.resize();
});