diff --git a/Gemfile.lock b/Gemfile.lock
index cca6d8bfcca2cb45f55002ced64f3c7567c17a3a..bd892bf9a19b5135524604f098666869b948ee04 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -40,17 +40,17 @@ GEM
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
     memoist (0.15.0)
-    middleman (4.1.12)
+    middleman (4.1.13)
       coffee-script (~> 2.2)
       compass-import-once (= 1.0.5)
       haml (>= 4.0.5)
       kramdown (~> 1.2)
-      middleman-cli (= 4.1.12)
-      middleman-core (= 4.1.12)
+      middleman-cli (= 4.1.13)
+      middleman-core (= 4.1.13)
       sass (>= 3.4.0, < 4.0)
-    middleman-cli (4.1.12)
+    middleman-cli (4.1.13)
       thor (>= 0.17.0, < 2.0)
-    middleman-core (4.1.12)
+    middleman-core (4.1.13)
       activesupport (>= 4.2, < 5.1)
       addressable (~> 2.3)
       backports (~> 3.6)
diff --git a/source/layout.html.haml b/source/layout.html.haml
index ee9ae07af209587854fc2e51565808b7b3eee54d..104717feb9c135917033e921df30a54d0997b89e 100644
--- a/source/layout.html.haml
+++ b/source/layout.html.haml
@@ -17,6 +17,7 @@
     %meta{:content => "#EE6E73", :name => "theme-color"}
     / CSS
     %link{:href => "/stylesheets/prism.css", :rel => "stylesheet"}
+    %link{:href => "/stylesheets/highlight.css", :media => "screen,projection", :rel => "stylesheet", :type => "text/css"}
     %link{:href => "/stylesheets/style.css", :media => "screen,projection", :rel => "stylesheet", :type => "text/css"}
     %link{:href => "http://fonts.googleapis.com/css?family=Inconsolata", :rel => "stylesheet", :type => "text/css"}
     %link{:href => "http://fonts.googleapis.com/icon?family=Material+Icons", :rel => "stylesheet"}
diff --git a/source/stylesheets/highlight.css.erb b/source/stylesheets/highlight.css.erb
new file mode 100644
index 0000000000000000000000000000000000000000..a2f0ff59f367944b6e0478c915f01e2ac84c28bb
--- /dev/null
+++ b/source/stylesheets/highlight.css.erb
@@ -0,0 +1 @@
+<%= Rouge::Themes::ThankfulEyes.render(:scope => '.highlight') %>
\ No newline at end of file