JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://cdn.jsdelivr.net/npm/three@0.115/build/three.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.2.4/dist/gsap.js"></script>
<button>
Animate
</button>

CSS

body {
	  margin: 0;
}
canvas {
	display: block;
}
button {
	position: absolute;
}

JavaScript

let camera, scene, renderer;
let letter_h;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 10 );
    camera.position.z = 4;

    scene = new THREE.Scene();

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

    letter_h = new THREE.Mesh( geometry, material ); // dummy mesh
    scene.add( letter_h );

    renderer = new THREE.WebGLRenderer( { antialias: true } );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );
		
		const button = document.querySelector( 'button');
		button.addEventListener( 'click', onClick, false );

}

function onClick() {

	gsap.to( letter_h.position, {
		duration: 2,
		x: 1,
		y: 0,
		z: 0
	} );

}

function animate() {

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

}