diff --git a/htdocs/public/project/index.php b/htdocs/public/project/index.php
index 0fac29d0769..05993490ad3 100644
--- a/htdocs/public/project/index.php
+++ b/htdocs/public/project/index.php
@@ -239,7 +239,7 @@ print '<input type="hidden" name="forcesandbox" value="'.GETPOSTINT('forcesandbo
 print "\n";
 
 
-print '<div class="center">';
+print '<div class="centergrid">';
 print '<div id="divsubscribe">';
 
 
diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index d46c2be4d4b..b1bfcc4705f 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -1021,6 +1021,11 @@ textarea.centpercent {
 .centerimp {
 	text-align: center !important;
 }
+.centergrid {
+	display: grid;
+	text-align: center;
+	place-items: center;
+}
 .alignstart {
 	text-align: start;
 }
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index 60111cfc239..f0194c16a43 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -1202,6 +1202,11 @@ textarea.centpercent {
 .centerimp {
 	text-align: center !important;
 }
+.centergrid {
+	display: grid;
+	text-align: center;
+	place-items: center;
+}
 .alignstart {
 	text-align: start;
 }