Add background color to template

Change-Id: I727e48ef46a9a15a4d73266013282a84d4e7a9af
diff --git a/templates/main.html b/templates/main.html
index baf5736..bf50dd1 100644
--- a/templates/main.html
+++ b/templates/main.html
@@ -7,7 +7,7 @@
   </head>
   <body>
     <h1>External Provider</h1>
-    <section>
+    <section style="background-color: #fefefe">
       <p id="buy">...</p>
     </section>
     <script defer=""><!--