diff --git a/lib/ui/src/components/preview/background.js b/lib/ui/src/components/preview/background.js
index 60a4ecd71742..aad35b97a87c 100644
--- a/lib/ui/src/components/preview/background.js
+++ b/lib/ui/src/components/preview/background.js
@@ -93,7 +93,7 @@ const Background = styled.div(
     top: 0,
     left: 0,
     width: '100%',
-    height: '100%',
+    minHeight: '100%',
     transition: 'background .1s linear',
     iframe: {
       width: '100%',