diff --git a/phpBB/styles/prosilver/template/memberlist_view.html b/phpBB/styles/prosilver/template/memberlist_view.html
index 7c6aec7699..afe93ef9ac 100644
--- a/phpBB/styles/prosilver/template/memberlist_view.html
+++ b/phpBB/styles/prosilver/template/memberlist_view.html
@@ -105,7 +105,7 @@
 
 		<h3>{L_SIGNATURE}</h3>
 
-		<div class="postbody"><div class="signature" style="border-top:none; margin-top: 0;">{SIGNATURE}</div></div>
+		<div class="postbody"><div class="signature standalone">{SIGNATURE}</div></div>
 
 	<span class="clear"></span></div>
 </div>
diff --git a/phpBB/styles/prosilver/template/ucp_profile_signature.html b/phpBB/styles/prosilver/template/ucp_profile_signature.html
index 574f61ed9f..614f6f440d 100644
--- a/phpBB/styles/prosilver/template/ucp_profile_signature.html
+++ b/phpBB/styles/prosilver/template/ucp_profile_signature.html
@@ -9,7 +9,7 @@
 		<div class="inner">
 		<h3>{L_SIGNATURE_PREVIEW}</h3>
 		<div class="postbody">
-			<div class="signature" style="border-top:none; margin-top: 0; ">{SIGNATURE_PREVIEW}</div>
+			<div class="signature standalone">{SIGNATURE_PREVIEW}</div>
 		</div>
 		</div>
 	</div>
diff --git a/phpBB/styles/prosilver/theme/content.css b/phpBB/styles/prosilver/theme/content.css
index 798cf1518f..3eb567ab65 100644
--- a/phpBB/styles/prosilver/theme/content.css
+++ b/phpBB/styles/prosilver/theme/content.css
@@ -398,6 +398,11 @@ p.author {
 	width: 100%;
 }
 
+.signature.standalone {
+	border-top-width: 0;
+	margin-top: 0;
+}
+
 dd .signature {
 	margin: 0;
 	padding: 0;