diff --git a/src/panels/lovelace/cards/hui-card.ts b/src/panels/lovelace/cards/hui-card.ts
index 6249acaba095..b4ca36b94e86 100644
--- a/src/panels/lovelace/cards/hui-card.ts
+++ b/src/panels/lovelace/cards/hui-card.ts
@@ -43,6 +43,9 @@ export class HuiCard extends ReactiveElement {
   private _listeners: MediaQueriesListener[] = [];
 
   protected createRenderRoot() {
+    const style = document.createElement("style");
+    style.textContent = `hui-card { display: contents }`;
+    this.append(style);
     return this;
   }
 
diff --git a/src/panels/lovelace/cards/hui-grid-card.ts b/src/panels/lovelace/cards/hui-grid-card.ts
index 97b336c529cb..0838db77d9ba 100644
--- a/src/panels/lovelace/cards/hui-grid-card.ts
+++ b/src/panels/lovelace/cards/hui-grid-card.ts
@@ -92,6 +92,7 @@ class HuiGridCard extends HuiStackCard<GridCardConfig> {
         }
 
         :host([square]) #root > *:not([hidden]) {
+          display: block;
           grid-row: 1 / 1;
           grid-column: 1 / 1;
         }
diff --git a/src/panels/lovelace/cards/hui-horizontal-stack-card.ts b/src/panels/lovelace/cards/hui-horizontal-stack-card.ts
index 502e54db4dd7..4e867e5b0e2f 100644
--- a/src/panels/lovelace/cards/hui-horizontal-stack-card.ts
+++ b/src/panels/lovelace/cards/hui-horizontal-stack-card.ts
@@ -30,7 +30,7 @@ export class HuiHorizontalStackCard extends HuiStackCard {
           height: 100%;
           gap: var(--horizontal-stack-card-gap, var(--stack-card-gap, 8px));
         }
-        #root > * {
+        #root > hui-card > * {
           flex: 1 1 0;
           min-width: 0;
         }