JSFiddle - React, Tailwind, and code Playground
HTML
<canvas id="canv"></canvas>
CSS
canvas {
border: 1px solid silver;
}
JavaScript
var ctx = document.querySelector('#canv').getContext('2d');
ctx.strokeStyle = '#f00';
ctx.beginPath();
ctx.moveTo(50, 50);
ctx.lineTo(250,100);
ctx.stroke();
ctx.strokeStyle = '#17a9ef';
ctx.beginPath();
ctx.moveTo(100, 20);
ctx.lineTo(10, 120);
ctx.stroke();