<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <title>Embedded MRBS with Header</title>

  <style>

    body {

      margin: 0;

      padding: 0;

      font-family: sans-serif;

      height: 100vh;

      display: flex;

      flex-direction: column;

    }


    header {

      height: 120px;

      background-color: #2c3e50;

      color: white;

      display: flex;

      align-items: center;

      justify-content: center;

      font-size: 1.5em;

      font-weight: bold;

    }


    iframe {

      flex: 1;

      width: 100%;

      border: none;

    }

  </style>

</head>

<body>

  <header>

    Maker