make pre-wrap default for all pre tags... w/ show lines, it becomes

more explicite...  It'd be nice to put everything in a div or something
that would scroll all the pre > code elements, but don't know how now..

content/media/css/custom.css

@@ -64,9 +64,10 @@ ul.tags  li {
     display: inline-block;
 }
 
-pre.showlines {
+pre {
   white-space: pre-wrap;
 }
+
 pre.showlines::before {
   counter-reset: listing;
 }