html,
body {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 14pt;
}
body {
  background-color: #eef;
  color: #004;
  font-family: ui-rounded, ui-sans-serif, system-ui, sans-serif;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
article {
  margin: 0 auto;
  padding-top: 15vh;
  max-width: 42rem;
  h1:first-child {
    margin-top: 0;
  }
}
footer {
  font-size: 0.9em;
  flex: 1;
  background-color: #ddf;
  margin-top: 4rem;
  padding-top: 2rem;
  padding-bottom: 1rem;
  p {
    text-align: center;
    margin: 0 auto;
    max-width: 42rem;
  }
}
ul {
  li {
    padding-bottom: 0.5rem;
  }
  li:last-child {
    padding-bottom: 0;
  }
}