JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id="canvas" />

JavaScript

$(document).ready(function(){
    $("#canvas").width(400);
    $("#canvas").height(400);
    var c = $("#canvas")[0].getContext("2d");
    c.fillStyle = "#000";
    c.fillRect(0,0,40,40);   
    $("#canvas").width(600);
    $("#canvas").height(600);
    c.fillRect(100,0,40,40);  
});