diff --git a/sphinx/static/default.css b/sphinx/static/default.css
index 1888a7de6..b0b8247ae 100644
--- a/sphinx/static/default.css
+++ b/sphinx/static/default.css
@@ -63,7 +63,6 @@ div.related {
     background-color: #133f52;
     color: #fff;
     width: 100%;
-    height: 30px;
     line-height: 30px;
     font-size: 90%;
 }