Make the background not fluctuate

notification-center/notification-center.tt

@@ -34,7 +34,7 @@
             <td><a class="button" href="javascript:toggleContentDisplay('[% notification %]')">Show/Hide</a></td>
         </tr>
         <tr style="display:none" id="[% notification %]">
-            <td colspan=3>
+            <td colspan=3 style="background-color: white !important;">
                 <div style="margin: 0 auto; width: 700px">
                     [% data.notifications.$notification.html %]
                 </div>