diff --git a/docs/quick_reference.html b/docs/quick_reference.html
index 95fb136..6525d8a 100644
--- a/docs/quick_reference.html
+++ b/docs/quick_reference.html
@@ -52,7 +52,7 @@
       @media (max-width: 767px){
         .col-sm-12.col-md-6.col-sm-first.col-md-first {
           border: 0;
-          border-top: 1px solid #bdbdbd;
+          border-bottom: 1px solid #bdbdbd;
         }
       }
       h3 > a{