Update index.html

Author: accgit

src/index.html

@@ -103,7 +103,7 @@
 	</div>
 
 	<!-- content -->
-	<div class="wrapping"></div>
+	<div class="content-wrapper"></div>
 
 	<!-- javascript libraries and plugins  -->
 	<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>