diff --git a/lib/core/src/server/templates/base-preview-head.html b/lib/core/src/server/templates/base-preview-head.html
index ad751607514b..698e0234cd99 100644
--- a/lib/core/src/server/templates/base-preview-head.html
+++ b/lib/core/src/server/templates/base-preview-head.html
@@ -1,6 +1,11 @@
 <base target="_parent">
 
 <style>
+  html, body{
+    width: 100%;
+    height: 100%;
+  }
+
   :not(.sb-show-main) > .sb-main,
   :not(.sb-show-nopreview) > .sb-nopreview,
   :not(.sb-show-errordisplay) > .sb-errordisplay {