gerred/base.html

## base.html
<html>
    <head>
        <style>body { text-align: center; } canvas { border: 1px solid black; margin: auto;}</style>
    </head>
    <body>
        <canvas id="canvas" width="500" height="500"></canvas>
        <script>
            var canvas = document.getElementById("canvas"),
                context = canvas.getContext('2d');
        </script>
    </body>
</html>
	<html>
	<head>
	<style>body { text-align: center; } canvas { border: 1px solid black; margin: auto;}</style>
	</head>
	<body>
	<canvas id="canvas" width="500" height="500"></canvas>
	<script>
	var canvas = document.getElementById("canvas"),
	context = canvas.getContext('2d');
	</script>
	</body>
	</html>