Ticket #49546: 49546.1.patch

src/wp-content/themes/twentythirteen/style.css

@@ -2583 +2583 @@
         background-color: transparent;
 }
 
+.wp-calendar-nav span {
+        display: inline-block;
+}
+
 /* Text widget */
 .widget_text ul,
 .widget_text ol {