diff --git a/index.html b/index.html
index 2cba03d8..5de8b892 100644
--- a/index.html
+++ b/index.html
@@ -130,6 +130,8 @@
  pre.src {background-color: #263238; color: #ffffff;}</style>
 <style type="text/css">
  pre.src {background-color: #263238; color: #ffffff;}</style>
+<style type="text/css">
+ pre.src {background-color: #263238; color: #ffffff;}</style>
 <script type="text/javascript">
 /*
 @licstart  The following is the entire license notice for the