diff --git a/css/index.css b/css/index.css
index 4dbaeea..51f2b55 100644
--- a/css/index.css
+++ b/css/index.css
@@ -90,7 +90,8 @@ pre {
   hyphens: none;
   padding: 1em;
   margin: .5em 0;
-  background-color: #f6f6f6;
+  /*background-color: #f6f6f6;*/
+  background-color: #C0C0C0;
 }
 code {
   word-break: break-all;