Untitled

<!DOCTYPE html>
<html>
<body>
<canvas id="aCanvas" height="100" width="150">
</canvas>
  <canvas height="200" width="150">
</canvas>
<script id="jsbin-javascript">
var aCanvas = document.getElementById("aCanvas");
var context = aCanvas.getContext("2d");
context.fillStyle="red";
context.fillRect(10,10,100,100);
</script>


<script id="jsbin-source-javascript" type="text/javascript">var aCanvas = document.getElementById("aCanvas");
var context = aCanvas.getContext("2d");
context.fillStyle="red";
context.fillRect(10,10,100,100);</script></body>
</html>