diff --git a/g2p_formio/__manifest__.py b/g2p_formio/__manifest__.py
index 430f2288..a4c7f2aa 100644
--- a/g2p_formio/__manifest__.py
+++ b/g2p_formio/__manifest__.py
@@ -23,7 +23,12 @@
         "wizard/g2p_self_service_program_view_wizard.xml",
     ],
     "external_dependencies": {"python": ["formio-data"]},
-    "assets": {},
+    "assets": {
+        "web.assets_backend": [
+            # builder
+            "g2p_formio/static/src/scss/formio_builder.scss",
+        ],
+    },
     "demo": [],
     "images": [],
     "application": True,
diff --git a/g2p_formio/static/src/scss/formio_builder.scss b/g2p_formio/static/src/scss/formio_builder.scss
new file mode 100644
index 00000000..66a8bc46
--- /dev/null
+++ b/g2p_formio/static/src/scss/formio_builder.scss
@@ -0,0 +1,7 @@
+#formio_builder_container {
+    height: 125vh;
+}
+
+#formio_builder_iframe_container {
+    height: 100vh;
+}