JSFiddle - React, Tailwind, and code Playground

HTML

<canvas id='mapCanvas' width=664 height=980></canvas>

CSS

#mapCanvas{
}

JavaScript

var canvas = $("#mapCanvas")[0],
			 cnv = $(canvas)[0],
			 context = cnv.getContext('2d'),
			 imageObj = new Image(),
			 cv = cnv.width,
			 ch = cnv.height;


src = "http://www.kitchenprague.com/curadmir/img/map/comp1/266.png";
imageObj.src = src;
imageObj.onload = function() {
    context.clearRect(0, 0, cv, ch);
    context.drawImage(imageObj, 0, 0)
};