<head>
  <meta charset="utf-8" />
  <meta http-equiv="x-ua-compatible" content="ie=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <title>{{ if not .IsHome }}{{with .Title }}{{ . }} &middot; {{ end }}{{ end }}{{ .Site.Title }}</title>
  <meta name="description" content="{{if .IsHome}}{{ $.Site.Params.description }}{{else}}{{.Description}}{{end}}" />
  {{ if (fileExists "static/apple-touch-icon.png") -}}
    <link rel="apple-touch-icon" sizes="180x180" href="{{ "/apple-touch-icon.png" | absURL }}">
  {{ end -}}
  {{ if (fileExists "static/favicon-32x32.png") -}}
    <link rel="icon" type="image/png" sizes="32x32" href="{{ "/favicon-32x32.png" | absURL }}">
  {{ end -}}
  {{ if (fileExists "static/favicon-16x16.png") -}}
    <link rel="icon" type="image/png" sizes="16x16" href="{{ "/favicon-16x16.png" | absURL }}">
  {{ end -}}
  {{ if (fileExists "static/site.webmanifest") -}}
  <link rel="manifest" href="{{ "/site.webmanifest" | absURL }}">
  {{ end -}}
  {{ if (fileExists "static/safari-pinned-tab.svg") -}}
    <link rel="mask-icon" href="{{ "/safari-pinned-tab.svg" | absURL }}" color="#5bbad5">
  {{ end -}}
  {{ if (fileExists "layouts/partials/meta-tags.html") -}}
    {{ partial "meta-tags.html" . }}
  {{ end -}}
  {{ with resources.Get "css/katex.css" -}}
  <link href="{{ .Permalink }}" rel="stylesheet">
  {{ end -}}
  {{ $normalizeStyle := resources.Get "css/normalize.css" }}
  {{ $mainStyle := resources.Get "css/style.css" }}
  {{ $overrideStyle := resources.Get "css/override.css" }}
  {{ $printStyle := resources.Get "css/print.css" }}
  {{ $style := slice $normalizeStyle $mainStyle $overrideStyle $printStyle | resources.Concat "css/concated.css" | minify }}
  <link href="{{ $style.Permalink }}" rel="stylesheet">
  {{ range .AlternativeOutputFormats -}}
    {{ printf `<link rel="%s" type="%s" href="%s" title="%s" />` .Rel .MediaType.Type .Permalink $.Site.Title | safeHTML }}
  {{ end -}}
  {{ with resources.GetMatch .Site.Params.bgimg -}}
  <style>
    body {
      background: #ecedef url("{{ .Permalink | safeCSS }}") repeat;
    }
  </style>
  {{- end }}
</head>