diff --git a/public/css/main.less b/public/css/main.less
index 8d8986d47f..e28fb60f66 100644
--- a/public/css/main.less
+++ b/public/css/main.less
@@ -20,6 +20,16 @@ li, .wrappable {
   word-wrap: break-word;      /* IE 5+ */
 }
 
+pre.wrappable {
+  white-space: pre;           /* CSS 2.0 */
+  white-space: pre-wrap;      /* CSS 2.1 */
+  white-space: -pre-wrap;     /* Opera 4-6 */
+  white-space: -o-pre-wrap;   /* Opera 7 */
+  white-space: -moz-pre-wrap; /* Mozilla */
+  white-space: -hp-pre-wrap;  /* HP Printers */
+  word-wrap: break-word;      /* IE 5+ */
+}
+
 html {
   position: relative;
   min-height: 100%;