blob: 0a9a0f3f3e9ee8f98fa0f894904cebed19b52c73 (
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<html>
<head>
<script type="text/javascript">
window.onload = function() {
var ctx = document.getElementById("c1").getContext("2d");
ctx.rect(50, 50, 200, 50);
ctx.rect(50, 50, 50, 200);
ctx.rect(250, 250, -200, -50);
ctx.rect(250, 250, -50, -200);
ctx.fill();
}
</script>
</head>
<body>
<div><canvas id="c1" width="300" height="300"></canvas></div>
</body>
</html>
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