diff --git a/assets/core.styl b/assets/core.styl
index defe96865e..6a108ecb91 100644
--- a/assets/core.styl
+++ b/assets/core.styl
@@ -35,6 +35,7 @@ resets(arr)
   -moz-tab-size: 4
   text-align: left
   white-space: pre-wrap
+  word-wrap: break-word
 
   p, ol, ul, pre, blockquote, h1, h2, h3, h4, h5, h6
     margin: 0