JSFiddle - React, Tailwind, and code Playground
HTML
<canvas id="canvas"></canvas>
JavaScript
var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
ctx.canvas.width = window.innerWidth;
ctx.canvas.height = window.innerHeight;
var s = 1;
// First path
ctx.beginPath();
ctx.fillStyle = 'darkturquoise';
ctx.moveTo(50*s,50*s);
ctx.lineTo(100*s,50*s);
ctx.lineTo(100*s,100*s);
ctx.lineTo(50*s,50*s);
ctx.fill();