diff --git a/docs/css/design.css b/docs/css/design.css
index 359e1557562..097f6f4e4b8 100644
--- a/docs/css/design.css
+++ b/docs/css/design.css
@@ -269,6 +269,7 @@
     vertical-align: baseline;
     padding: 0 0.2em 0.1em;
     border-radius: 0.15em;
+    white-space: pre-wrap;   /* Ensure long lines wrap */
 }
 .md-typeset .highlight code span,
 .md-typeset code,
@@ -730,4 +731,4 @@ i[warning] [class*="moji"] {
         padding: 1em;
     }
 }
-/**/
\ No newline at end of file
+/**/