diff --git a/src/wp-admin/css/login.css b/src/wp-admin/css/login.css
index 329cf01f60..dc2530e8c1 100644
--- a/src/wp-admin/css/login.css
+++ b/src/wp-admin/css/login.css
@@ -14,7 +14,7 @@ body {
 	color: #444;
 	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
 	font-size: 13px;
-	line-height: 1.4em;
+	line-height: 1.4;
 }
 
 a {
@@ -159,7 +159,7 @@ p {
 
 .login form .forgetmenot label {
 	font-size: 12px;
-	line-height: 19px;
+	line-height: 1.58333333;
 }
 
 .login h1 {
@@ -176,7 +176,7 @@ p {
 	height: 84px;
 	font-size: 20px;
 	font-weight: 400;
-	line-height: 1.3em;
+	line-height: 1.3;
 	margin: 0 auto 25px;
 	padding: 0;
 	text-decoration: none;