diff --git a/_sass/_syntax-highlighting.scss b/_sass/_syntax-highlighting.scss
index e36627da7..2c56e0915 100644
--- a/_sass/_syntax-highlighting.scss
+++ b/_sass/_syntax-highlighting.scss
@@ -64,4 +64,5 @@
     .vg    { color: #008080 } // Name.Variable.Global
     .vi    { color: #008080 } // Name.Variable.Instance
     .il    { color: #099 } // Literal.Number.Integer.Long
+    .lineno { color: #ccc; display:inline-block; padding: 0 5px; border-right:1px solid #ccc; }
 }