diff --git a/04/index.html b/04/index.html
index c56b6a8..51802a3 100644
--- a/04/index.html
+++ b/04/index.html
@@ -4,6 +4,11 @@
 
 <style>
 
+body{
+background: #FFFFFF;
+
+}
+
 #main_container{
   padding-top: 10px;
   padding-left: 40px;