<!DOCTYPE html>
<html>
  <head>
    <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title>
    <link rel="stylesheet" href="{{ "/css/base.css" | prepend: site.baseurl }}">
    <link rel="stylesheet" href="{{ "/css/frontpage.css" | prepend: site.baseurl }}">
  </head>
  <body>
    {% include header.html %}
    {{ content }}
    {% include footer.html %}
  </body>
</html>

<!DOCTYPE html>
<html>
  <head>
    <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title>
    <link rel="stylesheet" href="{{ "/css/base.css" | prepend: site.github.url }}">
    <link rel="stylesheet" href="{{ "/css/frontpage.css" | prepend: site.github.url }}">
  </head>
  <body>
    {% include header.html %}
    {{ content }}
    {% include footer.html %}
  </body>
</html>

Use GitHub url rather than base.
Use GitHub url rather than base.
