diff --git a/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss b/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
index 44bf15559240f..ea02e1f441b19 100644
--- a/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
+++ b/administrator/templates/atum/scss/vendor/joomla-custom-elements/joomla-alert.scss
@@ -12,9 +12,6 @@
 @import "../../../../../../node_modules/joomla-ui-custom-elements/dist/css/joomla-alert";
 
 #system-message-container {
-  background: var(--atum-bg-light);
-  box-shadow: 3px 3px 11px 0px rgba(0, 0, 0, 0.3);
-
   joomla-alert {
     display: block;
     min-width: 16rem;