diff --git a/supplemental-ui/css/custom.css b/supplemental-ui/css/custom.css
index f1c817f..024688e 100644
--- a/supplemental-ui/css/custom.css
+++ b/supplemental-ui/css/custom.css
@@ -1,3 +1,8 @@
+.header,
+.navbar {
+  background-color: rgb(0, 183, 191);
+}
+
 .prostep-logo-link {
   padding-right: 0.25rem;
 }
@@ -20,7 +25,9 @@
 
 .downloads-dropdown-menu {
   min-width: 20rem;
-  max-width: 24rem;
+  left: auto;
+  max-width: min(24rem, calc(100vw - 1rem));
+  right: 0;
 }
 
 .downloads-status,