JSFiddle - React, Tailwind, and code Playground

HTML

<script src="//cdn.rawgit.com/mrdoob/three.js/master/build/three.min.js"></script>
<script id="vertexShader" type="x-shader/x-vertex">

  void main()	{
  
    gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );
    gl_PointSize = 10.0;
    
	}
</script>

<script id="fragmentShader" type="x-shader/x-fragment">

		void main()	{
    
      gl_FragColor = vec4( vec3( 0.0 ), 0.5 );

		}
</script>

CSS

body {
	  margin: 0;
		background-color: yellow;
}

JavaScript

let camera, scene, renderer;

init();
animate();

function init() {

    camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 1000 );
    camera.position.z = 10;

    scene = new THREE.Scene();

    const geometry = new THREE.PlaneBufferGeometry();
    const material = new THREE.ShaderMaterial( {
      vertexShader: document.getElementById( 'vertexShader' ).textContent,
      fragmentShader: document.getElementById( 'fragmentShader' ).textContent
  	} );

    const mesh = new THREE.Points( geometry, material );
    scene.add( mesh );

    renderer = new THREE.WebGLRenderer( { alpha: true } );
    renderer.setSize( window.innerWidth, window.innerHeight );
    document.body.appendChild( renderer.domElement );

}

function animate() {

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

}