misc changes to header and login

    * Header optimizations for small screens
    * Style changes to login page.

Change-Id: Ia7a4fc0cab8e105348f8f8e36b3c61cdc938b2bb
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/src/navigation.html b/src/navigation.html
index ddfa648..88b6169 100644
--- a/src/navigation.html
+++ b/src/navigation.html
@@ -45,7 +45,7 @@
     </ul>
     <ul class="nav__second-level btn-overview">
         <li tabindex="2"><a href="">System Overview</a></li>
-        <li tabindex="3"class="active"><a href="power-operations.html">Server power operations</a></li>
+        <li tabindex="3"class="active"><a href="power-operations.html">Server power operations </a></li>
         <li tabindex="4"><a href="">Power consumption</a></li>
         <li tabindex="5"><a href="">Remote console</a></li>
     </ul>