Index: style-rtl.css
===================================================================
--- style-rtl.css	(revision 1924)
+++ style-rtl.css	(working copy)
@@ -1800,6 +1800,12 @@
 		margin-bottom: 30px;
 	}
 
+	/* Single Theme Navigation */
+	.theme-navigation .close:before {
+		content: "";
+		margin: 0;
+	}
+
 	/* Keep support and dev links stacked until they have enough room. */
 
 	.theme-wrap .theme-support,
Index: style.css
===================================================================
--- style.css	(revision 1924)
+++ style.css	(working copy)
@@ -1801,6 +1801,12 @@
 		margin-bottom: 30px;
 	}
 
+	/* Single Theme Navigation */
+	.theme-navigation .close:before {
+		content: "";
+		margin: 0;
+	}
+
 	/* Keep support and dev links stacked until they have enough room. */
 
 	.theme-wrap .theme-support,