diff --git a/public/theme/css/default.css b/public/theme/css/default.css
index 4521499..b6f883f 100644
--- a/public/theme/css/default.css
+++ b/public/theme/css/default.css
@@ -147,6 +147,7 @@ pre {
   padding: 5px;
   background-color: #EEEEEE;
   border: 1px dotted #AAAAAA;
+  white-space: pre-wrap;
 }
 
 hr {