body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f4f4f4;
    margin: 0;
    padding: 0;
  }
  .container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 20px;
  }
  header {
    background: #35424a;
    color: #ffffff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #e8491d 3px solid;
  }
  header h1 {
    margin: 0;
    text-align: center;
    font-size: 2.5em;
  }
  nav {
    text-align: center;
    margin-top: 20px;
  }
  nav ul {
    padding: 0;
    list-style-type: none;
  }
  nav ul li {
    display: inline;
    margin: 0 10px;
  }
  nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 18px;
  }

    .highlight {
    background: #e8491d;
    color: #ffffff;
    padding: 3px 5px;
    border-radius: 3px;
  }

    footer {
    background: #35424a;
    color: #ffffff;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
  }