diff --git a/carousel.html b/carousel.html
index cd6855aab5..75e0838e39 100644
--- a/carousel.html
+++ b/carousel.html
@@ -327,19 +327,19 @@ body {
       <img class="img-circle" data-src="holder.js/140x140">
       <h2>Heading</h2>
       <p>Donec sed odio dui. Etiam porta sem malesuada magna mollis euismod. Nullam id dolor id nibh ultricies vehicula ut id elit. Morbi leo risus, porta ac consectetur ac, vestibulum at eros. Praesent commodo cursus magna.</p>
-      <p><a class="btn" href="#">View details &raquo;</a></p>
+      <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
     </div><!-- /.col-lg-4 -->
     <div class="col col-lg-4">
       <img class="img-circle" data-src="holder.js/140x140">
       <h2>Heading</h2>
       <p>Duis mollis, est non commodo luctus, nisi erat porttitor ligula, eget lacinia odio sem nec elit. Cras mattis consectetur purus sit amet fermentum. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh.</p>
-      <p><a class="btn" href="#">View details &raquo;</a></p>
+      <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
     </div><!-- /.col-lg-4 -->
     <div class="col col-lg-4">
       <img class="img-circle" data-src="holder.js/140x140">
       <h2>Heading</h2>
       <p>Donec sed odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Vestibulum id ligula porta felis euismod semper. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</p>
-      <p><a class="btn" href="#">View details &raquo;</a></p>
+      <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
     </div><!-- /.col-lg-4 -->
   </div><!-- /.row -->
 
diff --git a/jumbotron.html b/jumbotron.html
index 5b2f62eb51..3627f7ef43 100644
--- a/jumbotron.html
+++ b/jumbotron.html
@@ -88,17 +88,17 @@ title: Jumbotron template
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
       </div>
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
      </div>
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec sed odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Vestibulum id ligula porta felis euismod semper. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus.</p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
       </div>
     </div>
 
diff --git a/justified-nav.html b/justified-nav.html
index fdd706a8f3..afc03a1a85 100644
--- a/justified-nav.html
+++ b/justified-nav.html
@@ -121,17 +121,17 @@ title: Justified nav template
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
       </div>
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec id elit non mi porta gravida at eget metus. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa justo sit amet risus. Etiam porta sem malesuada magna mollis euismod. Donec sed odio dui. </p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
      </div>
       <div class="col col-lg-4">
         <h2>Heading</h2>
         <p>Donec sed odio dui. Cras justo odio, dapibus ac facilisis in, egestas eget quam. Vestibulum id ligula porta felis euismod semper. Fusce dapibus, tellus ac cursus commodo, tortor mauris condimentum nibh, ut fermentum massa.</p>
-        <p><a class="btn" href="#">View details &raquo;</a></p>
+        <p><a class="btn btn-default" href="#">View details &raquo;</a></p>
       </div>
     </div>