diff --git a/src/material/BottomSheet.css b/src/material/BottomSheet.css
index f65274f..5dbd799 100644
--- a/src/material/BottomSheet.css
+++ b/src/material/BottomSheet.css
@@ -85,9 +85,3 @@
     }
   }
 }
-
-@starting-style {
-  .BottomSheet::backdrop {
-    background: transparent;
-  }
-}