diff -u b/core/profiles/demo_umami/themes/umami/css/components/blocks/banner/banner.css b/core/profiles/demo_umami/themes/umami/css/components/blocks/banner/banner.css
--- b/core/profiles/demo_umami/themes/umami/css/components/blocks/banner/banner.css
+++ b/core/profiles/demo_umami/themes/umami/css/components/blocks/banner/banner.css
@@ -49,7 +49,6 @@
   outline-color: #fff;
 }
 
-/* 768px */
 @media screen and (min-width: 48rem) { /* 768px */
   .block-type-banner-block {
     background-color: #464646;
@@ -93,7 +92,6 @@
   }
 }
 
-/* 960px */
 @media screen and (min-width: 60rem) { /* 960px */
   .block-type-banner-block .summary {
     flex: 0 0 41%;
@@ -111 +109 @@
-}
\ No newline at end of file
+}