<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>Semicircle Jam</title>
<style>
canvas { border: 1px solid blue; }
#container {
width: 100%;
text-align: center;
}
</style>
</head>
<body>
<h1>Semicircle Jam</h1>
<div id="container"></div>
</body>
<script src="semicircle-jam.js"></script>
<script>
launch('yoob/', 'container');
</script>