<html lang="en"> <head> <title> Newton Fractal </title> </head> <body> <canvas id="MyCanvas" height="400" width="400" style="border: 2px solid black;"> </canvas> <div id="output"> </div> <script> "use strict" // get the canvas and associated parts const canvas = document.getElementById("MyCanvas") const ctx = canvas.getContext("2d") const height = canvas.height const width = canvas.width ctx.beginPath() ctx.moveTo(0,0) ctx.lineTo(width,height) ctx.strokeStyle="Red" ctx.stroke() ctx.beginPath() ctx.strokeStyle="Blue" ctx.moveTo(0,height); ctx.lineTo(width,0) ctx.stroke() // get the output area const outputArea = document.getElementById("output") outputArea.innerHTML = "The canvas is "; outputArea.innerHTML += "<br> width: "+ width; outputArea.innerHTML += "<br> height: "+ height; </script> </body> </html>