diff --git a/src/wp-admin/css/common.css b/src/wp-admin/css/common.css
index 3a929ac375..6c4ac2d655 100644
--- a/src/wp-admin/css/common.css
+++ b/src/wp-admin/css/common.css
@@ -2455,7 +2455,7 @@ div.star-holder .star-rating {
 	font-weight: 400;
 	font-style: normal;
 	vertical-align: top;
-	transition: color .1s ease-in 0;
+	transition: color .1s ease-in;
 	text-align: center;
 	color: #ffb900;
 }
diff --git a/src/wp-admin/css/themes.css b/src/wp-admin/css/themes.css
index 0427328fb3..5998da841c 100644
--- a/src/wp-admin/css/themes.css
+++ b/src/wp-admin/css/themes.css
@@ -1182,7 +1182,7 @@ div#custom-background-image img {
 	display: inline-block;
 	line-height: 1;
 	text-align: center;
-	transition: background-color .1s ease-in 0;
+	transition: background-color .1s ease-in;
 }
 
 .background-position-control .background-position-center-icon {
diff --git a/src/wp-includes/css/dashicons.css b/src/wp-includes/css/dashicons.css
index 8436fa3cdc..02c8dc2265 100644
--- a/src/wp-includes/css/dashicons.css
+++ b/src/wp-includes/css/dashicons.css
@@ -25,7 +25,7 @@
 	font-style: normal;
 	vertical-align: top;
 	text-align: center;
-	transition: color .1s ease-in 0;
+	transition: color .1s ease-in;
 	-webkit-font-smoothing: antialiased;
 	-moz-osx-font-smoothing: grayscale;
 }