body {
  font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
  background-color: #f4f4f4;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  font-size: 24px;
}

main {
  text-align: center;
  padding: 20px;
  max-width: 480px;
}





@media (prefers-color-scheme: dark) {
  body, main {
    background-color: #141414;
    color: hsla(0, 0%, 100%, 0.9);
  }


  header, footer {
    background-color: black;
  }

  a, a:visited, a:hover, a:active {
    color: #e85d01;
  }

  td, th {
    border: 1px solid hsla(0, 0%, 100%, 0.1);
  }

  th {
    color: hsla(0, 0%, 100%, 0.9);
    background: inherit;
  }
}