JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head>
        <script type="text/javascript" charset="utf-8">
            window.onload = function() {
                var fitAspectRatio = function(srcWidth, srcHeight, fitWidth, fitHeight) {
                    if(fitHeight > fitWidth) {
                        theta = Math.PI / 2;
                        var temp = srcWidth;
                        srcWidth = srcHeight;
                        srcHeight = temp;
                    } else {
                        theta = 0;
                    }
                    var ratio = [fitWidth / srcWidth, fitHeight / srcHeight];
                    ratio = Math.min(ratio[0], ratio[1]);
                    return {
                        width : srcWidth * ratio,
                        height : srcHeight * ratio,
                        angle : theta
                    };
                };
                var img = new Image();
                img.src = 'http://everyguyed.com/wp-content/uploads/2011/02/fashion-tips-for-tall-men.jpg';//'image.jpg';

                var canvas = document.getElementById("canvas1");
                var ctx = canvas.getContext("2d");

                window.onresize = function() {
                    var newsize = fitAspectRatio(img.width, img.height, window.innerWidth, window.innerHeight);
                    canvas.width = window.innerWidth;
                    canvas.height = window.innerHeight;
                    img.centerX = canvas.width / 2;
                    img.centerY = canvas.height / 2;
                    if(newsize.angle !== 0) {
                        ctx.translate(img.centerX, img.centerY);
                        ctx.rotate(newsize.angle);
                        ctx.translate(-img.centerX, -img.centerY);
                        ctx.drawImage(img, (canvas.width - newsize.height) / 2, (canvas.height - newsize.width) / 2, newsize.height, newsize.width);
                    } else {
                        ctx.drawImage(img, (canvas.width - newsize.width)...