diff --git a/ghost/portal/src/components/Frame.styles.js b/ghost/portal/src/components/Frame.styles.js
index da2fb1e313..d0c2e12a8d 100644
--- a/ghost/portal/src/components/Frame.styles.js
+++ b/ghost/portal/src/components/Frame.styles.js
@@ -732,7 +732,7 @@ const MobileStyles = `
     }
 
     .gh-portal-popup-wrapper.fullscreen:not(.preview) .gh-portal-content {
-        max-height: calc(100vh - 190px) !important;
+        max-height: calc(100vh - 180px) !important;
     }
 
     .gh-portal-powered {
@@ -775,6 +775,8 @@ const MobileStyles = `
 
     .gh-portal-popup-wrapper.fullscreen .gh-portal-powered {
         padding-bottom: 0;
+        padding-top: 0;
+        margin-top: -8px;
     }
 }
 
diff --git a/ghost/portal/src/components/pages/SignupPage.js b/ghost/portal/src/components/pages/SignupPage.js
index 09a55251aa..50028ef965 100644
--- a/ghost/portal/src/components/pages/SignupPage.js
+++ b/ghost/portal/src/components/pages/SignupPage.js
@@ -118,7 +118,7 @@ export const SignupPageStyles = `
         max-width: 420px;
         height: unset;
         padding: 0 !important;
-        margin: 24px 32px 32px;
+        margin: 24px 32px;
     }
 
     @media (max-width: 480px) {