Remove misguided u=ins s=del equivalency.

fantasai · fantasai · commit 5d2b35b8d40c · 2014-07-24T13:38:35.000+01:00
diff --git a/default.css b/default.css
@@ -171,8 +171,8 @@
 
 /** Change Marking ************************************************************/
 
-	s, del { color: red;  text-decoration: line-through; }
-	u, ins { color: #080; text-decoration: underline;    }
+	del { color: red;  text-decoration: line-through; }
+	ins { color: #080; text-decoration: underline;    }
 
 /** Miscellaneous improvements to inline formatting ***************************/
 
