diff --git a/htdocs/theme/eldy/global.inc.php b/htdocs/theme/eldy/global.inc.php
index 6aa2a066e89..d2e3c43a3aa 100644
--- a/htdocs/theme/eldy/global.inc.php
+++ b/htdocs/theme/eldy/global.inc.php
@@ -4774,7 +4774,7 @@ div.visible {
 	display: block;
 }
 
-div.hidden, td.hidden, img.hidden, span.hidden, div.showifmore {
+div.hidden, header.hidden, td.hidden, img.hidden, span.hidden, div.showifmore {
 	display: none;
 }
 .unvisible {
diff --git a/htdocs/theme/md/style.css.php b/htdocs/theme/md/style.css.php
index c7ad8870c2e..4acf119eff7 100644
--- a/htdocs/theme/md/style.css.php
+++ b/htdocs/theme/md/style.css.php
@@ -4660,7 +4660,7 @@ div.visible {
 	display: block;
 }
 
-div.hidden, td.hidden, img.hidden, span.hidden, div.showifmore {
+div.hidden, header.hidden, td.hidden, img.hidden, span.hidden, div.showifmore {
 	display: none;
 }