diff -r 390514bce78a -r fca4100c1733 src/pyams_portal/templates/pagelet.pt
--- a/src/pyams_portal/templates/pagelet.pt	Fri Mar 26 16:32:52 2021 +0100
+++ b/src/pyams_portal/templates/pagelet.pt	Thu Aug 05 09:27:48 2021 +0200
@@ -5,14 +5,17 @@
 		<div class="row" tal:repeat="row range(template_config.rows)">
 			<div class="slots">
 				<tal:loop repeat="slot_name template_config.get_slots(row)">
-					<div class="slot"
-						 tal:define="slot_config template_config.get_slot_configuration(slot_name)"
+					<div tal:define="slot_config template_config.get_slot_configuration(slot_name)"
 						 tal:condition="slot_config.visible"
-						 tal:attributes="class string:slot col ${slot_config.get_css_class()}">
-						<div class="portlets">
-							<div tal:repeat="portlet_id template_config.slot_config[slot_name].portlet_ids"
-								 class="portlet ${view.get_portlet_css_class(portlet_id)}">
-								<tal:var replace="structure view.render_portlet(portlet_id)">Content</tal:var>
+						 tal:omit-tag="not:slot_config.container_css_class"
+						 class="${slot_config.container_css_class}">
+						<div class="slot"
+							 tal:attributes="class string:slot col ${slot_config.get_css_class()}">
+							<div class="portlets">
+								<div tal:repeat="portlet_id template_config.slot_config[slot_name].portlet_ids"
+									 class="portlet ${view.get_portlet_css_class(portlet_id)}">
+									<tal:var replace="structure view.render_portlet(portlet_id)">Content</tal:var>
+								</div>
 							</div>
 						</div>
 					</div>