diff --git a/css/application.css b/css/application.css
index 783d467..90bdfd1 100644
--- a/css/application.css
+++ b/css/application.css
@@ -317,11 +317,15 @@ div.sidebar .how-to-apply p:last-child {
 }
 
 div.sidebar div.source {
-  font-style: italic;
-  line-height: 1.5;
+  font-size: 12px;
   text-align: center;
   margin-top: 10px;
 }
+div.sidebar div.source a {
+  padding-left: 20px;
+  background: transparent url(/images/source@2x.png) 0 1px no-repeat;
+  background-size: 16px 12px;
+}
 
 div.sidebar div.boilerplate {
   font-family: 'courier new', courier;
diff --git a/images/source@2x.png b/images/source@2x.png
new file mode 100644
index 0000000..9b09b18
Binary files /dev/null and b/images/source@2x.png differ