@layer reset {
  body {
    margin: 0;
    padding: 0;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    margin: 0;
    padding: 0;
  }

  p {
    margin: 0;
    padding: 0;
  }

  summary {
    margin: 0;
    padding: 0;
  }

  table {
    margin: 0;
    padding: 0;
  }

  * {
    box-sizing: border-box;
  }

  /* Beaten by any `display` an author rule sets, which turns a hidden element
     into an empty box rather than no element. */
  [hidden] {
    display: none !important;
  }
}