diff --git a/source b/source
index 9f6bfcc10b4..2695e00f263 100644
--- a/source
+++ b/source
@@ -148916,8 +148916,8 @@ select {
 }
 
 select > button:first-child {
-  all: unset;
   display: contents;
+  appearance: base;
 }
 
 select:enabled:hover {