Reorganize navigation and header scss

Change-Id: I495e1c19cd5d67220c00ef65c88f7a95ad12bf68
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/layout/content.scss b/app/common/styles/layout/content.scss
index 84b613c..1547e30 100644
--- a/app/common/styles/layout/content.scss
+++ b/app/common/styles/layout/content.scss
@@ -1,4 +1,6 @@
 // Content layout styles
+$nav__toplvlWidth: 120px;
+$nav__seclvlWidth: 240px;
 
 // Page header
 .page-header {