diff --git a/.editorconfig b/.editorconfig
index 63eb570c6b..316254871a 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -16,3 +16,6 @@ quote_type = single
 
 [*.py]
 indent_size = 4
+
+[*.css]
+indent_size = 2
diff --git a/ui/config/config.css b/ui/config/config.css
index 5130c393f1..c3be585577 100644
--- a/ui/config/config.css
+++ b/ui/config/config.css
@@ -73,6 +73,10 @@ html {
   grid-template-columns: repeat(1, auto 1fr);
   justify-items: left;
   align-items: center;
+
+  /* sticky top-level headers */
+  position: sticky;
+  top: 0;
 }
 
 .overlay-header::before {