diff --git a/_includes/head.html b/_includes/head.html
index 1ef0fa01..e32b576a 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -14,8 +14,6 @@
-
-
diff --git a/_includes/head/custom.html b/_includes/head/custom.html
new file mode 100644
index 00000000..7074c982
--- /dev/null
+++ b/_includes/head/custom.html
@@ -0,0 +1,3 @@
+
+
+
\ No newline at end of file
diff --git a/_layouts/default.html b/_layouts/default.html
index 848ab6c6..a6472667 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -8,6 +8,7 @@ layout: compress
{% include head.html %}
+ {% include head/custom.html %}
diff --git a/assets/_scss/_variables.scss b/assets/_scss/_variables.scss
index 8df8d108..d02936d0 100644
--- a/assets/_scss/_variables.scss
+++ b/assets/_scss/_variables.scss
@@ -11,11 +11,22 @@ $doc-line-height : 26;
$paragraph-indent : false !default;
$indent-var : 0rem + ($doc-line-height / $doc-font-size);
-$serif : "PT Serif", serif;
-$sans-serif : -apple-system, ".SFNSText-Regular", "San Francisco", "Roboto", "Segoe UI", "Helvetica Neue", "Lucida Grande", sans-serif;
-$sans-serif-narrow : "PT Sans Narrow", sans-serif;
+/* system typefaces */
+$serif : Georgia, Times, serif;
+$sans-serif : -apple-system, ".SFNSText-Regular", "San Francisco", "Roboto", "Segoe UI", "Helvetica Neue", "Lucida Grande", Arial, sans-serif;
$monospace : Monaco, Consolas, "Lucida Console", monospace;
+/* sans serif typefaces */
+$sans-serif-narrow : $sans-serif;
+$helvetica : Helvetica, "Helvetica Neue", Arial, sans-serif;
+
+/* serif typefaces */
+$georgia : Georgia, serif;
+$times : Times, serif;
+$bodoni : "Bodoni MT", serif;
+$calisto : "Calisto MT", serif;
+$garamond : Garamond, serif;
+
/*
Colors