diff --git a/omega/panels/layouts/omega_12/omega_12_threecol_4_4_4_stacked/omega-12-threecol-4-4-4-stacked.tpl.php b/omega/panels/layouts/omega_12/omega_12_threecol_4_4_4_stacked/omega-12-threecol-4-4-4-stacked.tpl.php
index a2628ae..24571f2 100644
--- a/omega/panels/layouts/omega_12/omega_12_threecol_4_4_4_stacked/omega-12-threecol-4-4-4-stacked.tpl.php
+++ b/omega/panels/layouts/omega_12/omega_12_threecol_4_4_4_stacked/omega-12-threecol-4-4-4-stacked.tpl.php
@@ -1,17 +1,17 @@
 <div class="panel-display omega-12-threecol-4-4-4" <?php if (!empty($css_id)) { print "id=\"$css_id\""; } ?>>
-  <div class="panel-panel grid-12">
+  <div class="panel-panel grid-12 alpha omega">
     <div class="inside"><?php print $content['top']; ?></div>
   </div>
-  <div class="panel-panel grid-4">
+  <div class="panel-panel grid-4 alpha">
     <div class="inside"><?php print $content['left']; ?></div>
   </div>
   <div class="panel-panel grid-4">
     <div class="inside"><?php print $content['middle']; ?></div>
   </div>
-  <div class="panel-panel grid-4">
+  <div class="panel-panel grid-4 omega">
     <div class="inside"><?php print $content['right']; ?></div>
   </div>
-  <div class="panel-panel grid-12">
+  <div class="panel-panel grid-12 alpha omega">
     <div class="inside"><?php print $content['bottom']; ?></div>
   </div>
 </div>