diff --git a/phpBB/styles/prosilver/theme/common.css b/phpBB/styles/prosilver/theme/common.css
index 54d81406e8..45cb88890d 100644
--- a/phpBB/styles/prosilver/theme/common.css
+++ b/phpBB/styles/prosilver/theme/common.css
@@ -305,12 +305,6 @@ ol ol ul, ol ul ul, ul ol ul, ul ul ul {
 	border-radius: 7px;
 }
 
-.inner:after {
-	content: '';
-	clear: both;
-	display: block;
-}
-
 .rowbg {
 	margin: 5px 5px 2px 5px;
 }
@@ -326,12 +320,6 @@ ul.linklist {
 	margin: 0;
 }
 
-ul.linklist:after {
-	content: '';
-	display: block;
-	clear: both;
-}
-
 #cp-main .panel {
 	padding: 5px 10px;
 }
@@ -856,12 +844,6 @@ fieldset.fields1 dl.pmlist dd.recipients {
 	margin-top: 2em;
 }
 
-.action-bar:after {
-	clear: both;
-	content: '';
-	display: block;
-}
-
 /* Pagination
 ---------------------------------------- */
 .pagination {
@@ -1130,6 +1112,20 @@ form > p.post-notice strong {
 	background: transparent;
 }
 
+/* Inner box-model clearing */
+.inner:after,
+ul.linklist:after,
+.action-bar:after,
+.notification_text:after,
+.tabs-container:after,
+#tabs > ul:after, 
+#minitabs > ul:after,
+.postprofile .avatar-container:after {
+	clear: both;
+	content: '';
+	display: block;
+}
+
 .hidden {
 	display: none;
 }
@@ -1285,12 +1281,6 @@ form > p.post-notice strong {
 	margin-left: 58px;
 }
 
-.notification_text:after {
-	content: '';
-	clear: both;
-	display: block;
-}
-
 /* Navbar specific list items
 ----------------------------------------*/
 
diff --git a/phpBB/styles/prosilver/theme/content.css b/phpBB/styles/prosilver/theme/content.css
index 630dee75d5..8b84545a2c 100644
--- a/phpBB/styles/prosilver/theme/content.css
+++ b/phpBB/styles/prosilver/theme/content.css
@@ -716,12 +716,6 @@ fieldset.polls dd div {
 	overflow: hidden;
 }
 
-.postprofile .avatar-container:after {
-	clear: both;
-	content: '';
-	display: block;
-}
-
 .postprofile .avatar {
 	display: block;
 	float: left;
diff --git a/phpBB/styles/prosilver/theme/cp.css b/phpBB/styles/prosilver/theme/cp.css
index 5149a16ec9..d3699c3012 100644
--- a/phpBB/styles/prosilver/theme/cp.css
+++ b/phpBB/styles/prosilver/theme/cp.css
@@ -96,12 +96,6 @@ ul.cplist {
 	margin-bottom: 0px;
 }
 
-.tabs-container:after {
-	clear: both;
-	content: '';
-	display: block;
-}
-
 /* CP tabs shared
 ----------------------------------------*/
 #tabs, #minitabs {
@@ -115,12 +109,6 @@ ul.cplist {
 	position: relative;
 }
 
-#tabs > ul:after, #minitabs > ul:after {
-	clear: both;
-	content: '';
-	display: block;
-}
-
 #tabs .tab, #minitabs .tab {
 	display: inline-block;
 	float: left;