JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://github.com/GoodBoyDigital/pixi.js/releases/download/v3.0.5/pixi.js"></script>

JavaScript

var renderer = PIXI.autoDetectRenderer(400,300, { backgroundColor:0xffffff});
document.body.appendChild(renderer.view);
  
var stage = new PIXI.Container();

var filter = new PIXI.filters.DropShadowFilter();
filter.distance = 0;

var rect = new PIXI.Graphics();
	rect.beginFill(0xff0000);
	rect.drawRect(50,50,50,50);
  rect.endFill();
  rect.filters = [filter];

	stage.addChild(rect);

function animate() {
	requestAnimationFrame(animate);
  renderer.render(stage);
}
animate();