diff --git a/src/agenda_culturel/static/style.scss b/src/agenda_culturel/static/style.scss
index 6bb5f37..b155257 100644
--- a/src/agenda_culturel/static/style.scss
+++ b/src/agenda_culturel/static/style.scss
@@ -1893,6 +1893,16 @@ dialog {
 
 }
 
+.duplicate_tofix header, duplicate_tofix footer {
+    background: repeating-linear-gradient(
+        45deg,
+        rgba(187, 66, 66, 0.1),
+        rgba(187, 66, 66, 0.1) 10px,
+        rgba(240, 9, 9, 0.25) 10px,
+        rgba(240, 9, 9, 0.25) 20px
+        ),   
+}
+
 .single-event header .buttons [role="button"] {
     font-size: 90%;
 }
diff --git a/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html b/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
index 022cf60..20b50c6 100644
--- a/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
+++ b/src/agenda_culturel/templates/agenda_culturel/duplicate-inc.html
@@ -3,7 +3,7 @@
 {% load event_extra %}
 
 
-<article>
+<article class="{% if not duplicate.representative %}duplicate_tofix{% endif %}">
     <header><h2><a href="{% url 'view_duplicate' duplicate.pk %}">
         {% if duplicate.representative %}Duplication{% else %}Possible duplication{% endif %}
         &nbsp;:</a> {{ events|length }} événements le {{ events.0.start_day }}</h2>