diff --git a/static/css/dialog.css b/static/css/dialog.css
index ced4fef..3645561 100644
--- a/static/css/dialog.css
+++ b/static/css/dialog.css
@@ -95,6 +95,7 @@ dialog::backdrop {
         min-width: 100%;
         min-height: 100%;
         border: none;
+        border-radius: 0;
         background-color: rgba(0, 0, 0, 0.85);
     }
 }