diff --git a/src/Bundle/ChillMainBundle/Resources/views/layout.html.twig b/src/Bundle/ChillMainBundle/Resources/views/layout.html.twig
index 140557d69..b62ae622c 100644
--- a/src/Bundle/ChillMainBundle/Resources/views/layout.html.twig
+++ b/src/Bundle/ChillMainBundle/Resources/views/layout.html.twig
@@ -53,8 +53,12 @@
         {% block sublayout_content %}
             <div class="row justify-content-center my-5">
 
+                {# col-8 : width wasn't long enough. It would cause the message to be displayed on the left of 
+                the screen and the list of activities on the right... 
+                I don't know if this needs to be changed for the other flash messages too? 
+                For other pages, it doesn't change much visually.  #}
                 {% for flashMessage in app.session.flashbag.get('success') %}
-                    <div class="col-8 mb-5 alert alert-success flash_message">
+                    <div class="col-10 mb-5 alert alert-success flash_message">
                         <span>{{ flashMessage|raw }}</span>
                     </div>
                 {% endfor %}