iframe_example.html

<!DOCTYPE HTML>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <!-- sets the browsers viewport to the device width-->
  
  <!--<link rel="stylesheet" type="text/css" href="customercstyle.css">-->

</head>

<body>

   <p> Customers Website & content.... </p>
   <hr>

   <iframe src="sample_index.html" width="100%" height="1300px" frameborder="0" scrolling="no" style='overflow:hidden;'></iframe>


</body>