JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdnjs.cloudflare.com/ajax/libs/pixi.js/1.5.1/pixi.js"></script>
<canvas id="view"></canvas>

JavaScript

init();
function randInt(min, max)
{
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

function randFloat(min, max, length)
{
    var number = Math.random() * (max - min) + min;
    
    return parseFloat(number.toFixed(length));
}

function init()
{
    		

			var stage = new PIXI.Stage(0x000000);
		 
			var renderer = PIXI.autoDetectRenderer(400, 300);
		 
			document.body.appendChild(renderer.view);
		 
			var count = 300;

			var dots = {};

			for (var i = 0; i < count; i++) 
			{
				dots[i] = new PIXI.Graphics();

				dots[i]._x = randInt(0, 10);
				dots[i].__x = dots[i]._x;
				dots[i]._y = randInt(10, 16);
				dots[i]._v = randFloat(0.5, 1, 2);
				dots[i]._a = 0.1;
				dots[i]._color = 255;

				stage.addChild(dots[i]);
			}

			requestAnimFrame( animate );

			function animate() 
			{
				
				for (var i = 0; i < count; i++) 
				{
					var maxX = {
						10: randInt(10, 20),
						11: randInt(20, 30),
						12: randInt(30, 40),
						13: randInt(40, 50),
						14: randInt(30, 40),
						15: randInt(20, 30),
						16: randInt(10, 20),
					}

					var dC = 255 / (maxX[dots[i]._y] - dots[i].__x);
					dots[i]._color -= parseInt(dC);

					if (dots[i]._color <= 16)
					{
						var color = '10';
					}
					else
					{
						var color = dots[i]._color.toString(16);
					}

					color = '0xFF'+color+'00';

					dots[i].clear();

					dots[i]._v += dots[i]._a;

					dots[i]._x += dots[i]._v;

					dots[i].beginFill(color);
					dots[i].drawRect(dots[i]._x, dots[i]._y, 1, 1);
					dots[i].endFill();

					if (dots[i]._x > maxX[dots[i]._y])
					{
						dots[i].clear();

						dots[i]._x = randInt(0, 10);
						dots[i].__x = dots[i]._x;
						dots[i]._y = randInt(10, 16);
						dots[i]._v = randFloat(0.5, 1, 2);
						dots[i]._a = 0.1;
						dots[i]._color = 255;
					}
				}

				renderer.render(stage);

				requestAnimFrame( animate );
			}
}