diff --git a/view/theme/plusfuture/css/style.css b/view/theme/plusfuture/css/style.css
index 2e67313..c243980 100644
--- a/view/theme/plusfuture/css/style.css
+++ b/view/theme/plusfuture/css/style.css
@@ -204,6 +204,7 @@ nav {
 	top: 3.35rem;
 	left: 0px;
 	width: 100%;
+	max-height: 80vh;
 	background: $comment_item_colour;
 	padding: 1rem;
 	border-bottom: #ccc 1px solid;