diff --git a/src/wp-admin/css/common.css b/src/wp-admin/css/common.css
index 42c4c7be46..4851218c06 100644
--- a/src/wp-admin/css/common.css
+++ b/src/wp-admin/css/common.css
@@ -2160,7 +2160,7 @@ h3 .nav-tab, /* Back-compat for pre-4.4 */
 
 h1.nav-tab-wrapper, /* Back-compat for pre-4.4 */
 .wrap h2.nav-tab-wrapper, /* higher specificity to override .wrap > h2:first-child */
-h3.nav-tab-wrapper {
+.nav-tab-wrapper {
 	border-bottom: 1px solid #ccc;
 	margin: 0;
 	padding-top: 9px;
@@ -3747,7 +3747,7 @@ img {
 
 	h1.nav-tab-wrapper,
 	.wrap h2.nav-tab-wrapper,
-	h3.nav-tab-wrapper {
+	.nav-tab-wrapper {
 		border-bottom: 0;
 	}