diff --git a/backend/tests/test_sprint212_platform_source_portfolio.py b/backend/tests/test_sprint212_platform_source_portfolio.py
index 5a7f689e..bfb27be1 100644
--- a/backend/tests/test_sprint212_platform_source_portfolio.py
+++ b/backend/tests/test_sprint212_platform_source_portfolio.py
@@ -42,7 +42,8 @@ def test_source_inventory_is_compact_honest_and_domain_driven() -> None:
     assert "Meetbaar als:" in catalog
     assert "source-domain-grid" in styles
     assert "source-opportunity-domain" in styles
-    assert ".source-catalog-panel .panel-title-row" in styles
+    assert "section.source-catalog-panel > .panel-title-row" in styles
+    assert "display: grid !important" in styles
     assert "justify-self: start" in styles
 
 
diff --git a/frontend/src/styles/app.css b/frontend/src/styles/app.css
index 26855356..91fffe11 100644
--- a/frontend/src/styles/app.css
+++ b/frontend/src/styles/app.css
@@ -6926,12 +6926,12 @@ section {
 }
 
 @media (max-width: 640px) {
-  .source-catalog-panel .panel-title-row {
-    display: grid;
+  section.source-catalog-panel > .panel-title-row {
+    display: grid !important;
     gap: 0.6rem;
   }
 
-  .source-catalog-panel .panel-title-row .status-badge {
+  section.source-catalog-panel > .panel-title-row .status-badge {
     justify-self: start;
   }