diff --git a/addons/mass_mailing/views/snippets/s_showcase.xml b/addons/mass_mailing/views/snippets/s_showcase.xml
index 2c796f78299..a0d985e71ac 100644
--- a/addons/mass_mailing/views/snippets/s_showcase.xml
+++ b/addons/mass_mailing/views/snippets/s_showcase.xml
@@ -4,9 +4,9 @@
 <template id="s_showcase" name="Showcase">
     <div class="s_showcase o_mail_snippet_general pt48 pb48">
         <!-- TODO: (below) issue with height: `fit-content` is not supported, can we calculate it in px in translation ?
-        empty div height is 0 unless table has defined height (div.col-1 > div.w-50.h100.border-right)-->
+        empty div height is 0 unless table has defined height (div.col-1 > div.w-50.h100.border-end)-->
         <div class="container" style="height: fit-content;">
-            <div class="row no-gutters s_col_no_resize s_col_no_bgcolor s_nb_column_fixed">
+            <div class="row g-0 s_col_no_resize s_col_no_bgcolor s_nb_column_fixed">
                 <div class="col-lg-6 pb24" style="text-align: right; padding-right: 70px;" align="right">
                     <div class="mb-2">
                         <h3 class="d-inline-block">First feature</h3>
@@ -22,7 +22,7 @@
                     <p>A short description of this great feature.</p>
                 </div>
             </div>
-            <div class="row no-gutters s_col_no_resize s_col_no_bgcolor s_nb_column_fixed">
+            <div class="row g-0 s_col_no_resize s_col_no_bgcolor s_nb_column_fixed">
                 <div class="col-lg-6" style="text-align: right; padding-right: 70px;" align="right">
                     <div class="mb-2">
                         <h3 class="d-inline-block">Second feature</h3>