diff --git a/src/components/App.tsx b/src/components/App.tsx
index df875a8..8cf0d9a 100644
--- a/src/components/App.tsx
+++ b/src/components/App.tsx
@@ -32,6 +32,7 @@ function getDefaultState() {
     progress: undefined,
     disableAutoClose: false,
     limit: 0,
+    stacked: false,
   };
 }
 
@@ -142,6 +143,15 @@ export function App() {
           onChange={handleInput}
         />
       </div>
+      <div>
+        <h3>Stacked</h3>
+        <RadioList
+          options={["true", "false"]}
+          name="stacked"
+          checked={state.stacked ? "true" : "false"}
+          onChange={handleInput}
+        />
+      </div>
       <div>
         <h3>Type</h3>
         <RadioList
diff --git a/src/components/ContainerCode.tsx b/src/components/ContainerCode.tsx
index 63703e9..b056660 100644
--- a/src/components/ContainerCode.tsx
+++ b/src/components/ContainerCode.tsx
@@ -37,6 +37,7 @@ export const ContainerCode: React.FC<ContainerCodeProps> = ({
   limit,
   theme = "light",
   transition,
+  stacked = false,
 }) => {
   return(
   <div>
@@ -50,6 +51,10 @@ export const ContainerCode: React.FC<ContainerCodeProps> = ({
         <Element kind={1}>position</Element>
         {`="${position}"`}
       </div>
+      <div>
+        <Element kind={1}>stacked</Element>
+        {`="${stacked}"`}
+      </div>
       <div>
         <Element kind={1}>autoClose</Element>
         {`={${disableAutoClose ? false : autoClose}}`}