moocstudent moocstudent

## index.html
<html>
<head>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
  <link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css"/>
  <style type="text/css">
    #mynetwork {
      width: 800px;
      height: 600px;
      border: 1px solid lightgray;
    }
	<html>
	<head>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.js"></script>
	<link href="https://cdnjs.cloudflare.com/ajax/libs/vis/4.21.0/vis.min.css" rel="stylesheet" type="text/css"/>
	<style type="text/css">
	#mynetwork {
	width: 800px;
	height: 600px;
	border: 1px solid lightgray;
	}