d3 svg french flag

xxxxxxxxxx
 
<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
    h1 {font-family: Arial;}
  </style>
</head>
<header>
  <h1>the french flag</h1>
<body>
<svg>
  <rect x="10" y="0" fill="red" width="600" height="600"></rect>
  <rect x="100" y="0" fill="white" width="600" height="600"></rect>
  <rect x="200" y="0" fill="blue" width="600" height="600"></rect>
 
  </svg>
</body>
    

https://d3js.org/d3.v4.min.js