JSFiddle - React, Tailwind, and code Playground
HTML
<canvas id="example1" width="400" height="300"></canvas>
JavaScript
// get the canvas
var canvas = document.getElementById('example1');
// get the "2d" context
var context = canvas.getContext('2d');
// change fill style to orange
context.fillStyle = '#ff7700';
// draw an orange rectangle
context.fillRect(0, 0, 300, 300);