Ticket #24238: 24238.diff

wp-content/themes/twentythirteen/style.css

@@ -738 +738 @@
         margin: 5px auto;
 }
 
+img.alignnone {
+        margin: 5px 0;
+}
+
 .wp-caption .wp-caption-text,
 .entry-caption,
 .gallery-caption {

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

@@ -270 +270 @@
         margin: 5px auto;
 }
 
+img.alignnone {
+        margin: 5px 0;
+}
 
+
 /**
  * Tables
  * ----------------------------------------------------------------------------