JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://threejs.org/build/three.js"></script>
<script src="https://threejs.org/examples/js/controls/OrbitControls.js"></script>

CSS

body {
	  margin: 0;
}

JavaScript

var camera, scene, renderer;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 1000 );
    camera.position.z = 500;
   	camera.up.set( 0, 0, 1 );

    scene = new THREE.Scene();

 		var gridGround = new THREE.GridHelper( 1000, 30,0x3f3f3f, 0x3f3f3f );
		gridGround.rotation.x = Math.PI / 2;
    
    scene.add( gridGround );

    renderer = new THREE.WebGLRenderer( { antialias: true } );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );
    
    const controls = new THREE.OrbitControls( camera, renderer.domElement );

}

function animate() {

    requestAnimationFrame( animate );
    renderer.render( scene, camera );

}