HTML5 Testing

I try to put a canvas (400 x 300 pixels) here with an orange (#FFAA00) rectangle.


<canvas id="myCanvas" width="400" height="300"></canvas>
<script type="text/javascript">
var canvas = document.getElementById("myCanvas");
var context = canvas.getContext("2d");
context.fillStyle = "#FFAA00";
context.fillRect(0,0,200,100);
</script>