<head> <meta charset="utf-8" /> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0"> <title>{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}</title> <meta name="author" content="{{ site.author.name }}" /> {% if page.subtitle %} <meta name="description" content="{{ page.subtitle }}"> {% endif %} <link rel="alternate" type="application/rss+xml" title="{{ site.title }} - {{ site.description }}" href="{{ site.baseurl }}/feed.xml" /> <!-- everything has to be repeated twice because on 2016-02-01 GitHub pages migrated to jekyll 3; see bug https://github.com/jekyll/jekyll/issues/4439 --> {% if page.common-ext-css %} {% for css in page.common-ext-css %} <link rel="stylesheet" href="{{ css }}" /> {% endfor %} {% endif %} {% if layout.common-ext-css %} {% for css in layout.common-ext-css %} <link rel="stylesheet" href="{{ css }}" /> {% endfor %} {% endif %} {% if page.common-css %} {% for css in page.common-css %} <link rel="stylesheet" href="{{ css | prepend: site.baseurl | replace: '//', '/' }}" /> {% endfor %} {% endif %} {% if layout.common-css %} {% for css in layout.common-css %} <link rel="stylesheet" href="{{ css | prepend: site.baseurl | replace: '//', '/' }}" /> {% endfor %} {% endif %} {% if page.common-googlefonts %} {% for font in page.common-googlefonts %} <link rel="stylesheet" href="//fonts.googleapis.com/css?family={{ font }}" /> {% endfor %} {% endif %} {% if layout.common-googlefonts %} {% for font in layout.common-googlefonts %} <link rel="stylesheet" href="//fonts.googleapis.com/css?family={{ font }}" /> {% endfor %} {% endif %} {% if page.ext-css %} {% for css in page.ext-css %} <link rel="stylesheet" href="{{ css }}" /> {% endfor %} {% endif %} {% if layout.ext-css %} {% for css in layout.ext-css %} <link rel="stylesheet" href="{{ css }}" /> {% endfor %} {% endif %} {% if page.css %} {% for css in page.css %} <link rel="stylesheet" href="{{ css | prepend: site.baseurl | replace: '//', '/' }}" /> {% endfor %} {% endif %} {% if layout.css %} {% for css in layout.css %} <link rel="stylesheet" href="{{ css | prepend: site.baseurl | replace: '//', '/' }}" /> {% endfor %} {% endif %} {% if page.googlefonts %} {% for font in page.googlefonts %} <link rel="stylesheet" href="//fonts.googleapis.com/css?family={{ font }}" /> {% endfor %} {% endif %} {% if layout.googlefonts %} {% for font in layout.googlefonts %} <link rel="stylesheet" href="//fonts.googleapis.com/css?family={{ font }}" /> {% endfor %} {% endif %} <!-- Facebook OpenGraph tags --> <meta property="og:title" content="{% if page.title %}{{ page.title }}{% else %}{{ site.title }}{% endif %}" /> <meta property="og:type" content="website" /> {% if page.id %} <meta property="og:url" content="{{ site.url }}{{ page.url }}/" /> {% else %} <meta property="og:url" content="{{ site.url }}{{ page.url | remove: '/index.html' | remove: '.html' }}" /> {% endif %} {% if page.fb-img %} <meta property="og:image" content="{{ page.fb-img }}" /> {% elsif site.avatar %} <meta property="og:image" content="{{ site.url }}{{ site.avatar }}" /> {% else %} <meta property="og:image" content="" /> {% endif %} </head>