<!DOCTYPE html>
<html
  lang='en'
  >
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>{{ site.title }}</title>
    <link
      rel='stylesheet'
      href='css/styles.css'
      >
    <script
      src='https://code.jquery.com/jquery-3.3.1.min.js'
    <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
      integrity='sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8='
      crossorigin='anonymous'
      ></script>
  </head>
  <body>
    {% include nav.html %}
    {{ content }}
  </body>
</html>

<!DOCTYPE html>
<html
  lang='en'
  >
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>{{ site.title }}</title>
    <link
      rel='stylesheet'
      href='css/styles.css'
      >
    <script
      src='https://code.jquery.com/jquery-3.3.1.min.js'
    <script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
      integrity='sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8='
      crossorigin='anonymous'
      ></script>
  </head>
  <body>
    {% include nav.html %}
    <div class='container' id='main'>
      {{ content }}
    </div>
  </body>
</html>

Put content inside a `container`
Put content inside a `container`
