diff --git a/lib/default-theme/styles/code.styl b/lib/default-theme/styles/code.styl
index 7241afcbc2..cbd02ccdd7 100644
--- a/lib/default-theme/styles/code.styl
+++ b/lib/default-theme/styles/code.styl
@@ -16,6 +16,8 @@
     border-radius 6px
     padding 1.25rem 1.5rem
     margin 0.85rem 0
+    white-space pre-wrap
+    word-break break-word
     overflow auto
     position relative
     code