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, 100 );
    camera.position.set( 10, 10, 25 );

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

		var shape_points = [];
		shape_points.push(new THREE.Vector2(8.75, 13.1));
		shape_points.push(new THREE.Vector2(14.35, 14.25));
		shape_points.push(new THREE.Vector2(4.35, 7.2));
		shape_points.push(new THREE.Vector2(8.7, 3.5));
		shape_points.push(new THREE.Vector2(18.95, 5.45));
		shape_points.push(new THREE.Vector2(16.35, 12.2));
		shape_points.push(new THREE.Vector2(8.75, 13.1));

		var shape = new THREE.Shape(shape_points);
		var shape_geometry = new THREE.ShapeBufferGeometry(shape);
		var material = new THREE.MeshBasicMaterial({ color: 0xDE2640, opacity: 0.6 });
		material.transparent = true;
		var polygon = new THREE.Mesh(shape_geometry, material);
		scene.add( polygon )

		var line_geo = new THREE.BufferGeometry().setFromPoints(shape_points);
		var line = new THREE.Line(line_geo, new THREE.LineBasicMaterial({ color: 0x000000, linewidth: 2 }));
		line.position.z = 0.01;
		scene.add(line);

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

}

function animate() {

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

}