added back content_block headerButtonGroup due to backwards compatibility and modified header.html.ep to fit changes
diff --git a/dev/scss/base/base.scss b/dev/scss/base/base.scss
index cfe10b5..7750665 100644
--- a/dev/scss/base/base.scss
+++ b/dev/scss/base/base.scss
@@ -34,16 +34,17 @@
   fill: $dark-grey;
 }
 
-html {
-  height: 100vh;
-}
+// html {
+//   height: 100vh;
+// }
 
 body {
-  position:   relative;
   min-height: 100vh;
   font-size:  12pt;
   margin:     0;
   padding:    0;
+  display:    flex;
+  flex-direction: column;
 }
 
 a {
@@ -99,6 +100,8 @@
   border-left:      5px solid $ids-blue-1;
   background-color: $ids-blue-2;
   color:            $ids-blue-1;
+  -webkit-mix-blend-mode: normal; // Safari
+  mix-blend-mode:   soft-light;
   
   &.bug,
   &.missing,