full width layout improvement

public/style.css

@@ -1,6 +1,7 @@
 body {
   font-family: sans-serif;
   margin: auto;
+  max-width: 1320px;
   padding-left: 50px;
   padding-right: 50px
 }
@@ -9,13 +10,13 @@ body {
   width: 7em;
 }
 
-/* Add a blue background color to the top navigation */
+/* Add a black background color to the top navigation */
 .topnav {
   background-color: #1761B2;
   overflow: hidden;
-  width:102%;
-  padding: 60px 60px 0px 60px;
-  margin: -50px -60px 0px -60px;
+  width:130%;
+  padding: 100px 300px 0px 300px;
+  margin:  -90px -300px 0px -300px;
 }
 
 /* Style the links inside the navigation bar */