diff --git a/blocks/header/header-megamenu.js b/blocks/header/header-megamenu.js
index 43a2cdb08..17400ae07 100644
--- a/blocks/header/header-megamenu.js
+++ b/blocks/header/header-megamenu.js
@@ -87,9 +87,6 @@ function buildMegaMenu(block, content) {
       ),
     );
 
-    const backgroundImg = content.querySelector('.submenu-background img');
-    submenu.style.backgroundImage = `url(${backgroundImg.src})`;
-
     // Get the list item in the header block that contains a div with attribute menu-id
     // that matches the menuId
     const item = block.querySelector(`div[menu-id="${menuId}"]`).closest('li');
diff --git a/blocks/header/header.css b/blocks/header/header.css
index 2cf5da30f..ddde00b46 100644
--- a/blocks/header/header.css
+++ b/blocks/header/header.css
@@ -482,7 +482,18 @@ header .nav-tabs .menu-nav-submenu {
   opacity: 1;
   visibility: visible;
   position: absolute;
-  background: var(--background-color) url('/images/header-background-filler.jpg') no-repeat right bottom;
+  background: linear-gradient(90deg, rgb(64, 172, 100) 0, rgba(70 146 140) 50%, rgb(17, 149, 185) 100%) !important;
+}
+
+header .nav-tabs .menu-nav-submenu::after {
+  background-image: url("/images/wave-background-bottom.webp"), url("/images/wave-background-bottom.png");
+  background-size: 100% 100%;
+  height: 82px;
+  width: 100%;
+  position: absolute;
+  padding: 0;
+  bottom: 0;
+  content: "";
 }
 
 header .cards-submenu > div {
@@ -1726,7 +1737,7 @@ header .actionable-card-submenu.customercare-portal > div:nth-child(2) > div:nth
   }
 
   header .nav-tabs .menu-nav-submenu {
-    min-height: 782px;
+    min-height: 750px;
     padding-bottom: 9.4%;
     box-shadow: inset 0 19px 33px -28px #333F;
     background-repeat: no-repeat;