<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>melody-jsnes</title>
  <style>
    canvas {
      width: 768px;
      height: 720px;
      image-rendering: -moz-crisp-edges;
      image-rendering: -webkit-crisp-edges;
      image-rendering: pixelated;
    }

    * {
      margin: 0;
      padding: 0;
    }

    #content {
      margin: 0 auto;
      width: 768px;
      text-align: center;
    }

    #message {
      font-family: sans-ser