demo

src/main/webapp/index.jsp

@@ -53,7 +53,7 @@
     <div class="container">
         <h1>Hello, world!</h1>
         <p>This is a template for a simple marketing or informational website. It includes a large callout called a jumbotron and three supporting pieces of content. Use it as a starting point to create something more unique.</p>
-        <p><a class="btn btn-default btn-lg" role="button">Learn more &raquo;</a></p>
+        <p><a class="btn btn-danger btn-lg" role="button">Learn more &raquo;</a></p>
     </div>
 </div>