styled textbook css to look closer to the discussion forum navigation

lms/static/sass/course/_textbook.scss

 div.book-wrapper {
   @extend .table-wrapper;
+  display: table;
+  table-layout:  fixed;
+  padding: 1em 8em; 
+
 
   #open_close_accordion {
     display: none;
@@ -11,7 +15,9 @@ div.book-wrapper {
     @include box-sizing(border-box);
     padding: 10px 0;
     border-radius: 3px 0 0 3px;
-    border-right: 1px solid #ccc;
+    border: 1px solid #ccc;
+    border-right: none;
+    width: 250px;
 
     ul#booknav {
       font-size: em(14);
@@ -86,6 +92,8 @@ div.book-wrapper {
 
   section.book {
     @extend .content;
+    padding: 0;
+    width:76%;
 
     nav {
       @extend .clearfix;
@@ -152,8 +160,12 @@ div.book-wrapper {
 
     section.page {
       border: 1px solid $border-color;
+      background-color: #fff;
       position: relative;
       text-align: center;
+      padding: lh();
+      margin-right:10%;
+      border-radius: 0 3px 3px 0;
 
       img {
         max-width: 100%;