<!DOCTYPE HTML>
<html>
<head>
  <title>Graph2d | External legend Example</title>
  <link href="../../dist/vis-timeline-graph2d.min.css" rel="stylesheet" type="text/css" />
  <style type="text/css">
    body, html {
      font-family: sans-serif;
    }

    .custom-style1 {
      fill: #f2ea00;
      fill-opacity:0;
      stroke-width:2px;
      stroke: #b3ab00;
    }

    .custom-style2 {
      fill: #00a0f2;
      fill-opacity:0;
      stroke-width:2px;
      stroke: #050092;
    }

    .custom-style3 {
  