<!DOCTYPE html>
<html subLang="en">
<head>
<meta charset="UTF-8">
<title>HTML5 Canvas</title>
<script type="text/javascript">
    window.onload = function(){
        var canvas = document.getElementById("myCanvas");
        var context = canvas.getContext("2d");
        // draw stuff here
    };
</script>
</head>
<body>
    <canvas id="myCanvas" width="300" height="200"></canvas>
</body>
</html>