diff --git a/default.scss b/default.scss
index 04cfbf4..bdad53c 100644
--- a/default.scss
+++ b/default.scss
@@ -11,6 +11,7 @@ pre {
     counter-reset: line;
     width: 100%;
     box-sizing: border-box;
+    white-space:pre-wrap;
 
     span {
         display: block;
diff --git a/styles.css b/styles.css
index 96498ba..361df3e 100644
--- a/styles.css
+++ b/styles.css
@@ -46,7 +46,8 @@ pre {
   overflow-x: scroll;
   counter-reset: line;
   width: 100%;
-  box-sizing: border-box; }
+  box-sizing: border-box;
+  white-space:pre-wrap; }
   pre span {
     display: block; }
     pre span:before {