diff --git a/data/gramps.css b/data/gramps.css
index 14b441c23..f9b354424 100644
--- a/data/gramps.css
+++ b/data/gramps.css
@@ -14,3 +14,8 @@
   border-radius: 10px;
   margin: 1px;
 }
+
+paned>separator {
+  margin: 0px;
+  padding: 1px;
+}