To save you a click to the dedicated website, this is all there is to it:

  <!doctype html>
  <html lang="en">
  <head>
      <meta charset="utf-8">
      <meta name="viewport" content="width=device-width, initial-scale=1.0">
      <meta http-equiv="x-ua-compatible" content="ie=edge">
      <meta name="description" content="">
      <title>Minimal base.html</title>
  </head>
  </html>