diff --git a/omega/panels/layouts/omega_12/omega_12_onecol/omega-12-onecol.tpl.php b/omega/panels/layouts/omega_12/omega_12_onecol/omega-12-onecol.tpl.php
index 52d25e8..beb2e63 100644
--- a/omega/panels/layouts/omega_12/omega_12_onecol/omega-12-onecol.tpl.php
+++ b/omega/panels/layouts/omega_12/omega_12_onecol/omega-12-onecol.tpl.php
@@ -1,5 +1,5 @@
 <div class="panel-display omega-12-onecol" <?php if (!empty($css_id)) { print "id=\"$css_id\""; } ?>>
-  <div class="panel-panel">
+  <div class="panel-panel grid-12">
     <div class="inside"><?php print $content['middle']; ?></div>
   </div>
 </div>
diff --git a/omega/panels/layouts/omega_16/omega_16_onecol/omega-16-onecol.tpl.php b/omega/panels/layouts/omega_16/omega_16_onecol/omega-16-onecol.tpl.php
index 7c23813..8b32635 100644
--- a/omega/panels/layouts/omega_16/omega_16_onecol/omega-16-onecol.tpl.php
+++ b/omega/panels/layouts/omega_16/omega_16_onecol/omega-16-onecol.tpl.php
@@ -1,5 +1,5 @@
 <div class="panel-display omega-16-onecol" <?php if (!empty($css_id)) { print "id=\"$css_id\""; } ?>>
-  <div class="panel-panel">
+  <div class="panel-panel grid-16">
     <div class="inside"><?php print $content['middle']; ?></div>
   </div>
 </div>
diff --git a/omega/panels/layouts/omega_24/omega_24_onecol/omega-24-onecol.tpl.php b/omega/panels/layouts/omega_24/omega_24_onecol/omega-24-onecol.tpl.php
index fcab45c..e5acfb6 100644
--- a/omega/panels/layouts/omega_24/omega_24_onecol/omega-24-onecol.tpl.php
+++ b/omega/panels/layouts/omega_24/omega_24_onecol/omega-24-onecol.tpl.php
@@ -1,5 +1,5 @@
 <div class="panel-display omega-24-onecol" <?php if (!empty($css_id)) { print "id=\"$css_id\""; } ?>>
-  <div class="panel-panel">
+  <div class="panel-panel grid-24">
     <div class="inside"><?php print $content['middle']; ?></div>
   </div>
 </div>