Index: src/wp-includes/admin-bar.php
===================================================================
--- src/wp-includes/admin-bar.php	(revision 53691)
+++ src/wp-includes/admin-bar.php	(working copy)
@@ -1211,10 +1211,7 @@
 	$type_attr = current_theme_supports( 'html5', 'style' ) ? '' : ' type="text/css"';
 	?>
 <style<?php echo $type_attr; ?> media="screen">
-	html { margin-top: 32px !important; }
-	@media screen and ( max-width: 782px ) {
-		html { margin-top: 46px !important; }
-	}
+	html { margin-top: var(--wp-admin--admin-bar--height, 32px) !important; }
 </style>
 	<?php
 }