JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdn.rawgit.com/mrdoob/three.js/master/build/three.min.js"></script>

CSS

body {
	  margin: 0;
}

JavaScript

var camera, scene, renderer;
var geometry, material, mesh;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 10 );
    camera.position.z = 1;

    scene = new THREE.Scene();
    
    let light = new THREE.SpotLight( 0xffffff, 1.5 );
  	light.position.set( 0, 1500, 200 );
  	light.castShadow = true;

    scene.add( light );

    geometry = new THREE.CylinderBufferGeometry( 0.5, 0.5, 1, 32 );
		material = new THREE.MeshNormalMaterial();
    mesh = new THREE.Mesh( geometry, material); 
    
    scene.add( mesh );
    
    renderer = new THREE.WebGLRenderer( { antialias: true } );
    renderer.setSize( window.innerWidth, window.innerHeight );
    renderer.shadowMap.enabled = true;
    
    document.body.appendChild( renderer.domElement );
}

function animate() {
    requestAnimationFrame( animate );

		mesh.rotation.x += 0.01;
    mesh.rotation.y += 0.02;
		
    renderer.render( scene, camera );

}