body {
    margin: 0;
    background: #ffffff;
  }

  /* ONE centered wrapper */
  .container {
    width: 813px;
    margin: 0 auto; /* centers entire site */
    text-align: center;
  }

  .nav {
    background: #000;
    padding: 12px 0;
  }

  .nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 20px;
    font-weight: bold;
  }

  .nav a:hover {
    text-decoration: underline;
  }

  img {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
  }

  ul {
    text-align: left;
    display: inline-block;
  }