var x = document.getElementById("myCanvas"); var y = x.getContext("2d"); var width = 100; var height = 50; y.fillStyle = "#ff00ff"; y.fillRect(10, 5, width, height); y.fillRect(190, 5, width, height); y.fillRect(10, 90, width, height); y.fillRect(190, 90, width, height);