<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="150" height="120">Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById('point');
var ctx = canvas.getContext('2d');
ctx.transform(1, .1, .4, 1, 0, 0);
ctx.fillStyle = "#339933";
ctx.fillRect(0, 0, 100, 100);
</script> </body>
</html>