diff --git a/editor/sass/notifications.scss b/editor/sass/notifications.scss
index 428c497bb..80640dd28 100644
--- a/editor/sass/notifications.scss
+++ b/editor/sass/notifications.scss
@@ -32,6 +32,7 @@
     color: #666;
     border: 1px solid #325C80;
     border-left-width: 16px;
+    overflow: hidden;
 }
 .notification a {
     text-decoration: none;