Implement firmware upload function

Change-Id: Ie89793ec9add1fc9e5241b422cfff64784f7b078
Signed-off-by: Iftekharul Islam <iislam@us.ibm.com>
diff --git a/app/common/styles/elements/modals.scss b/app/common/styles/elements/modals.scss
index 70c0af1..299dfb1 100644
--- a/app/common/styles/elements/modals.scss
+++ b/app/common/styles/elements/modals.scss
@@ -12,6 +12,10 @@
   padding:0;
 }
 
+.modal-overlay.active{
+  display: block;
+}
+
 .modal {
   width:50%;
   max-width: 850px;
@@ -31,6 +35,10 @@
   }
 }
 
+.modal.active{
+  display: block;
+}
+
 .modal .page-header {
   padding-bottom: .7em;
 }