use standard html

IPython/html/templates/notebook.html

@@ -42,7 +42,7 b' class="notebook_app"'
 </span>
 
 <span id="kernel_selector_widget" class="pull-right dropdown">
-    <button href="#" class="dropdown-toggle" data-toggle="dropdown" type='button' id="current_kernel_spec">
+    <button class="dropdown-toggle" data-toggle="dropdown" type='button' id="current_kernel_spec">
         <span class='kernel_name'>Python</span>
         <span class="caret"></span> 
     </button>
@@ -271,13 +271,13 b' class="notebook_app"'
                 </li>
             </ul>
             <ul class="nav navbar-nav navbar-right">
-                <div id="kernel_indicator">
+                <li id="kernel_indicator">
                    <i id="kernel_indicator_icon"></i>
-                </div>
-                <div id="modal_indicator">
+                </li>
+                <li id="modal_indicator">
                    <i id="modal_indicator_icon"></i>
-                </div>
-                <div id="notification_area"></div>
+                </li>
+                <li id="notification_area"></li>
             </ul>
         </div>
     </div>