diff --git a/jumbotron/index.html b/jumbotron/index.html
index f73a8d715..6db59d5d4 100644
--- a/jumbotron/index.html
+++ b/jumbotron/index.html
@@ -44,8 +44,8 @@
             </li>
           </ul>
           <form class="navbar-form form-inline pull-right">
-            <input type="text" placeholder="Email">
-            <input type="password" placeholder="Password">
+            <input type="text" placeholder="Email" class="form-control">
+            <input type="password" placeholder="Password" class="form-control">
             <button type="submit" class="btn">Sign in</button>
           </form>
         </div><!--/.nav-collapse -->