Accessibility fixes

- Add tab index order to navigation.
- Minor CSS changes.

Change-Id: I402d3cb8c1ac14bd930a5efcf472c1d249cfe00a
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/base/buttons.scss b/app/common/styles/base/buttons.scss
index 6bda87f..2f53391 100644
--- a/app/common/styles/base/buttons.scss
+++ b/app/common/styles/base/buttons.scss
@@ -3,7 +3,7 @@
   @include fontFamilyBold;
   text-transform: none;
   border-radius: 3px;
-  padding: .5rem 1rem .5rem;
+  padding: .5rem 2rem .5rem;
   height: auto;
   border: 0;
   overflow: hidden;
@@ -55,7 +55,7 @@
 }
 .btn-secondary {
   color: $secbtn__text;
-  background: $white;
+  background: transparent;
   border: 2px solid $secbtn__border;
   min-height: 40px;
   &:hover {