JSFiddle - React, Tailwind, and code Playground
HTML
<canvas width="500" height="500" id="canvas"></canvas>
<div style="top:-100px;">a</div>JavaScript
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
ctx.fillRect(25,25,100,100);
ctx.strokeRect(250,250,100,100);