diff --git a/frontend/less/espo/custom.less b/frontend/less/espo/custom.less
index 4bbb96894a..4235e093c3 100644
--- a/frontend/less/espo/custom.less
+++ b/frontend/less/espo/custom.less
@@ -2200,6 +2200,7 @@ table.table td.cell .html-container {
 
 .complex-text,
 .confirm-message,
+.alert,
 .alert > .message,
 .popover-content {
     h1:first-child,