diff --git a/index.html b/index.html
index 490b08e..0d44e23 100644
--- a/index.html
+++ b/index.html
@@ -7,7 +7,7 @@
   <body onload="changePDF('chapter1')">
     <table width="100%" height="100%">
       <tr width="100%" height="100%">
-      <td width="10%">
+      <td width="10%" style="background-color: gray;">
         <a href="javascript:changePDF('chapter1')">Chapter 1</a><br>
         <a href="javascript:changePDF('chapter 2')">Chapter 2</a><br>
         <a href="javascript:changePDF('chapter 3')">Chapter 3</a><br>
@@ -33,7 +33,7 @@
         <a href="javascript:changePDF('chapter 23')">Chapter 23</a><br>
         </td>
       <td width="90%" height="100%">
-        <div id="chapter_name" style="text-transform: capitalize;">Chapter 1</div>
+        <h1><div id="chapter_name" style="text-transform: capitalize;">Chapter 1</div></h1>
         <div id="pdfcontainer" height="100%" width="100%">
           
         </div>
