Update app.py

app.py

@@ -272,13 +272,12 @@ def send_to_sandbox(code):
     encoded_html = base64.b64encode(code.encode('utf-8')).decode('utf-8')
     data_uri = f"data:text/html;charset=utf-8;base64,{encoded_html}"
     return f"""
-        <div style="height:800px !important; max-height:800px !important; overflow:hidden !important;">
+        <div class="sandbox-container" style="height:800px !important; max-height:800px !important; overflow:hidden !important;">
             <iframe 
                 src="{data_uri}" 
-                width="100%" 
-                height="800"
-                style="height:800px !important; max-height:800px !important; border:none; overflow:auto;"
+                style="width:100%; height:800px !important; max-height:800px !important; border:none; display:block;"
                 scrolling="auto"
+                sandbox="allow-scripts allow-same-origin"
             ></iframe>
         </div>
     """