diff --git a/_includes/header_presentation.html b/_includes/header_presentation.html
index ebe95c2..c783d4c 100644
--- a/_includes/header_presentation.html
+++ b/_includes/header_presentation.html
@@ -11,9 +11,11 @@
       </button>
       <a class="page-scroll" href="{{ site.url }}"><img class="img-responsive" src="{{ site.url }}/img/logo.png" alt="example42"></a>
     </div>
-    <div class="col-lg-12">
-      <h2>Tutorial - {{ page.title }}</h2>
+    <!-- Collect the nav links, forms, and other content for toggling -->
+    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
+      <h2>{{ page.title }}</h2>
     </div>
+    <!-- /.navbar-collapse -->
   </div>
   <!-- /.container -->
 </nav>
diff --git a/_includes/presentation.html b/_includes/presentation.html
index 7f29242..1f025c6 100644
--- a/_includes/presentation.html
+++ b/_includes/presentation.html
@@ -12,5 +12,8 @@
 
 <script src="https://remarkjs.com/downloads/remark-latest.min.js"></script>
 <script>
-  var slideshow = remark.create({navigation: {scroll: true,}});
+  var slideshow = remark.create({
+    ratio: '16:9',
+    navigation: {scroll: false,}
+    });
 </script>
\ No newline at end of file