Misc CSS fixes

  * set max content width to 960px
  * created mixin for bold font
  * move app-header content to global header
  * minor global changes
  * changed input alignment for network config inputs
  * added pop-out button class
  * changed lightgrey color
  * fixed accordion header actions responsiveness
  * fixed input box border colors

Change-Id: Iffe26d526439d7f2bb6808528a975ab7374ff1b2
Signed-off-by: Michael Davis <michael.s.davis@ibm.com>
diff --git a/app/common/styles/elements/content-search.scss b/app/common/styles/elements/content-search.scss
index af14e05..b1aae36 100644
--- a/app/common/styles/elements/content-search.scss
+++ b/app/common/styles/elements/content-search.scss
@@ -13,7 +13,7 @@
 
   #content__search-input {
     margin: 0;
-    border: 1px solid $lightgrey;
+    border: 1px solid $medgrey;
     padding-left: 40px;
     padding-right: 5px;
     &:focus {