diff --git a/wp-content/themes/twentythirteen/rtl.css b/wp-content/themes/twentythirteen/rtl.css
index 1f5fb8b76f..25f338df53 100644
--- a/wp-content/themes/twentythirteen/rtl.css
+++ b/wp-content/themes/twentythirteen/rtl.css
@@ -854,7 +854,7 @@ div.nav-menu > ul {
 	.toggled-on .nav-menu,
 	.toggled-on .nav-menu > ul {
 		margin-left: auto;
-		margin-right: 0px;
+		margin-right: 0;
 	}
 
 	.toggled-on .nav-menu li > ul {
diff --git a/wp-content/themes/twentythirteen/style.css b/wp-content/themes/twentythirteen/style.css
index e765d26c1b..448de5a523 100644
--- a/wp-content/themes/twentythirteen/style.css
+++ b/wp-content/themes/twentythirteen/style.css
@@ -991,7 +991,7 @@ ul.nav-menu li:hover > ul,
 }
 
 .navbar-fixed .navbar {
-	box-shadow: 0px 2px 2px rgba(173, 165, 105, 0.2);
+	box-shadow: 0 2px 2px rgba(173, 165, 105, 0.2);
 	height: 45px;
 	position: fixed;
 	top: 0;
@@ -1378,7 +1378,7 @@ footer.entry-meta {
 
 .blog .format-aside:first-of-type,
 .single .format-aside:first-of-type {
-	box-shadow: inset 0px 2px 2px rgba(173, 165, 105, 0.2);
+	box-shadow: inset 0 2px 2px rgba(173, 165, 105, 0.2);
 }
 
 .format-aside .entry-content .date {
@@ -1642,7 +1642,7 @@ footer.entry-meta {
 
 .blog .format-link:first-of-type,
 .single .format-link:first-of-type {
-	box-shadow: inset 0px 2px 2px rgba(173, 165, 105, 0.2);
+	box-shadow: inset 0 2px 2px rgba(173, 165, 105, 0.2);
 }
 
 .format-link .entry-header,