diff --git a/superset-frontend/src/dashboard/components/DashboardBuilder/DashboardBuilder.tsx b/superset-frontend/src/dashboard/components/DashboardBuilder/DashboardBuilder.tsx
index 8906ddb316e..0d95bfb9038 100644
--- a/superset-frontend/src/dashboard/components/DashboardBuilder/DashboardBuilder.tsx
+++ b/superset-frontend/src/dashboard/components/DashboardBuilder/DashboardBuilder.tsx
@@ -315,6 +315,7 @@ const StyledDashboardContent = styled.div<{
       background-color: ${theme.colorBgContainer};
       position: relative;
       padding: ${theme.sizeUnit * 4}px;
+      box-sizing: border-box;
       overflow-y: visible;
 
       // transitionable traits to show filter relevance
@@ -332,7 +333,7 @@ const StyledDashboardContent = styled.div<{
 
       &.fade-out {
         border-radius: ${theme.borderRadius}px;
-        box-shadow: none;
+        box-shadow: 0 0 0 1px ${addAlpha(theme.colorBorder, 0.5)};
       }
 
       & .missing-chart-container {