idelem

## index.html
<!DOCTYPE html>
<head>
  <meta charset="utf-8">
</head>
<body>
  <svg width='100%' height='100%'></svg>
</body>
<script src="https://d3js.org/d3.v5.min.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
<script src="viewer.js">
	<!DOCTYPE html>
	<head>
	<meta charset="utf-8">
	</head>
	<body>
	<svg width='100%' height='100%'></svg>
	</body>
	<script src="https://d3js.org/d3.v5.min.js"></script>
	<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
	<script src="viewer.js">