diff --git a/wp-includes/css/buttons.css b/wp-includes/css/buttons.css
index 646f584ead..2de703b084 100644
--- a/wp-includes/css/buttons.css
+++ b/wp-includes/css/buttons.css
@@ -264,7 +264,6 @@ TABLE OF CONTENTS:
 	background: #0073aa;
 	border-color: #006799;
 	box-shadow: inset 0 2px 0 #006799;
-	vertical-align: top;
 }

 .wp-core-ui .button-primary[disabled],
