JSFiddle - React, Tailwind, and code Playground

HTML

<body>
<div id="container"></div>
</body>

JavaScript

const THREE = await import('https://cdn.skypack.dev/[email protected]');
const { OrbitControls } = await import('https://cdn.skypack.dev/[email protected]/examples/jsm/controls/OrbitControls.js');
const { GUI } = await import('https://cdn.skypack.dev/[email protected]/examples/jsm/libs/lil-gui.module.min.js');
const { GLTFLoader } = await import('https://cdn.skypack.dev/[email protected]/examples/jsm/loaders/GLTFLoader.js');
import * as SkeletonUtils from 'https://cdn.skypack.dev/[email protected]/examples/jsm/utils/SkeletonUtils.js';

let scene, renderer, camera;
let skeletonHelper, animationMixer;
let clock = new THREE.Clock();
const guiParams = {
    showSkeleton: true,
};

init();

function init() {
    const container = document.getElementById('container');

    camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.01, 10);
    camera.position.set(0.75, 1.85, -0.86);

    scene = new THREE.Scene();
    scene.background = new THREE.Color(0x66aa66);

    renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.setPixelRatio(window.devicePixelRatio);
    renderer.setSize(window.innerWidth, window.innerHeight);
    renderer.outputEncoding = THREE.sRGBEncoding;
    renderer.shadowMap.enabled = true;
    container.appendChild(renderer.domElement);

    const controls = new OrbitControls(camera, renderer.domElement);
    controls.enablePan = false;
    controls.enableDamping = true;
    controls.dampingFactor = 0.1;
    controls.target.set(0, 1, 0);


    scene.add(new THREE.GridHelper(400, 1000));

    const gui = new GUI();
    gui.add(guiParams, 'showSkeleton')
        .name('Show skeleton')
        .onChange(function (value) {
            skeletonHelper.visible = value;
        });

    const loader = new GLTFLoader();
    loader.load('https://raw.githubusercontent.com/mrdoob/three.js/master/examples/models/gltf/Soldier.glb', function (gltf) {

        const model = gltf.scene

        const material = new THREE.MeshNormalMaterial();
     ...