JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://threejs.org/build/three.min.js"></script>
<div id="WebGLCanvas" style="text-align:center;">
	    </div>

CSS

canvas{
                position:fixed;
                top:0;
                left:0;
            }

JavaScript

var width = 800;
        var height = 600;
        var scene = new THREE.Scene();
	    var camera = new THREE.PerspectiveCamera(75,width/height,1,10000);
	    var renderer = new THREE.WebGLRenderer();
	    renderer.setClearColor(0xFFFFFF,1);
	    renderer.setSize(width,height);
	    $('#WebGLCanvas').append(renderer.domElement);
	    
	    
	    var geometry = new THREE.BoxGeometry(500, 260, 800, 25, 40, 13);
	    var material = new THREE.MeshBasicMaterial({color: 0xfffff, wireframe: true});
	    var cube = new THREE.Mesh(geometry, material);
        scene.add(cube);
        camera.position.z = 300;
        camera.position.y = 100;
        camera.position.x = 150;
        camera.lookAt(scene.position);
        
        //--------------------------------------------------------------------------
        //
        //--------------------------------------------------------------------------
        
        function addGroundPane(){
            var planeGeo = new THREE.PlaneGeometry(2000,2000,100,100);
            var planeMat = new THREE.MeshLambertMaterial({color:0x00F0F0});
            var plane = new THREE.Mesh(planeGeo,planeMat);
            plane.rotation.x = -Math.PI/2;
            plane.position.y = -120;
            plane.receiveShadow = true;
            scene.add(plane);
        }
        addGroundPane();
        
        //--------------------------------------------------------------------------
        //ADD A LIGHT
        //--------------------------------------------------------------------------
        
        var light = new THREE.SpotLight(0xFFFFFF);
        light.position.set(0,130,0);
        light.target.position.set(400,-130,0);
        
        scene.add(light);
        
        
        
        function enableShadows(){
            renderer.shadowMapEnabled = true;
            light.castShadow = true;
            cube.castShadow = true;
            cube.receiveShadow = true;
        }
        
        function render() {
           ...