diff --git a/exercices/TP_Nuisibles.html b/exercices/TP_Nuisibles.html
index daeb3a8..4e0c88e 100644
--- a/exercices/TP_Nuisibles.html
+++ b/exercices/TP_Nuisibles.html
@@ -583,7 +583,7 @@
   gap: 12px;
   max-width: 640px;
   width: 100%;
-  margin: 1.5rem 0;
+  margin: 1.5rem auto;
 }
 .final-card {
   background: white;