diff --git a/public/book.css b/public/book.css
index e68cd06..3b50f24 100644
--- a/public/book.css
+++ b/public/book.css
@@ -1,5 +1,5 @@
 body {
-    background-color: #f5efdb;
+    background-color: #d3d3d3;
 }
 
 h1 {