diff --git a/phpBB/styles/prosilver/theme/common.css b/phpBB/styles/prosilver/theme/common.css
index 935b81b9dd..a57246e5a3 100644
--- a/phpBB/styles/prosilver/theme/common.css
+++ b/phpBB/styles/prosilver/theme/common.css
@@ -9,6 +9,9 @@
 
 html {
 	font-size: 100%;
+	/* Always show a scrollbar for short pages - stops the jump when the scrollbar appears. non-ie browsers */
+	height: 100%;
+	margin-bottom: 1px;
 }
 
 body {