JSFiddle - React, Tailwind, and code Playground
HTML
<script>
function draw() {
var canvas = document.getElementById("canvas");
if (canvas.getContext) {
var ctx = canvas.getContext("2d");
ctx.fillStyle = "red";
ctx.fillRect (10, 10, 55, 50);
ctx.fillStyle = "lightgreen";
ctx.fillRect (30, 30, 55, 50);
}
}
</script>
<body onload="draw();">
<canvas id="canvas" width="150" height="150"></canvas>