diff --git a/layouts/content-sidebar-sidebar.css b/layouts/content-sidebar-sidebar.css
index 3bb0a21..98e3ee2 100644
--- a/layouts/content-sidebar-sidebar.css
+++ b/layouts/content-sidebar-sidebar.css
@@ -3,7 +3,7 @@ Theme Name: _s
 Layout: Content-Sidebar-Sidebar
 */
 
-.site-content {
+#primary {
 	float: left;
 	width: 100%;
 }
diff --git a/layouts/content-sidebar.css b/layouts/content-sidebar.css
index fba0c66..edf558d 100644
--- a/layouts/content-sidebar.css
+++ b/layouts/content-sidebar.css
@@ -3,7 +3,7 @@ Theme Name: _s
 Layout: Content-Sidebar
 */
 
-.site-content {
+#primary {
 	float: left;
 	margin: 0 -25% 0 0;
 	width: 100%;
diff --git a/layouts/sidebar-content-sidebar.css b/layouts/sidebar-content-sidebar.css
index 706ee13..9081318 100644
--- a/layouts/sidebar-content-sidebar.css
+++ b/layouts/sidebar-content-sidebar.css
@@ -3,7 +3,7 @@ Theme Name: _s
 Layout: Sidebar-Content-Sidebar
 */
 
-.site-content {
+#primary {
 	float: left;
 	width: 100%;
 }
diff --git a/layouts/sidebar-content.css b/layouts/sidebar-content.css
index 4be0ec4..6fe41c2 100644
--- a/layouts/sidebar-content.css
+++ b/layouts/sidebar-content.css
@@ -3,7 +3,7 @@ Theme Name: _s
 Layout: Sidebar-Content
 */
 
-.site-content {
+#primary {
 	float: right;
 	margin: 0 0 0 -25%;
 	width: 100%;
diff --git a/layouts/sidebar-sidebar-content.css b/layouts/sidebar-sidebar-content.css
index 76f5988..9313458 100644
--- a/layouts/sidebar-sidebar-content.css
+++ b/layouts/sidebar-sidebar-content.css
@@ -3,7 +3,7 @@ Theme Name: _s
 Layout: Sidebar-Sidebar-Content
 */
 
-.site-content {
+#primary {
 	float: right;
 	margin: 0 0 0 -40%;
 	width: 100%;