--- a/src/pyams_skin/resources/less/forms.less	Tue Sep 19 11:36:06 2017 +0200
+++ b/src/pyams_skin/resources/less/forms.less	Fri Sep 29 10:50:52 2017 +0200
@@ -769,7 +769,7 @@
 
 			>section,
 			>article,
-			>div {
+			>div:not(.persistent) {
 				display: none;
 			}
 			legend {