diff --git a/docs/_includes/header.html b/docs/_includes/header.html
index b8906ba..0d24b9c 100644
--- a/docs/_includes/header.html
+++ b/docs/_includes/header.html
@@ -18,6 +18,8 @@
hr {
height: 2px !important;
+ color: #555 !important;
+ background-color: #555 !important;
}