４角形 - 経済統計練習帳

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>練習</title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js"></script>
<script src="sample.js"></script>
</head>
<body>
<svg width="500" height="500">
<rect x="100" y="100" width="250" height="200" fill="red" />
</svg>
</body>
</html>