Index: src/wp-admin/css/customize-controls.css
===================================================================
--- src/wp-admin/css/customize-controls.css	(revision 59452)
+++ src/wp-admin/css/customize-controls.css	(working copy)
@@ -561,7 +561,6 @@
 .accordion-section-title button.accordion-trigger {
 	all: unset;
 	width: 100%;
-	height: 100%;
 	padding: 10px 30px 11px 14px;
 	display: flex;
 	align-items: center;