header {
  width: 100%;
  margin: auto 1em;
  text-align: center;
  align-items: center;
}

footer {
  width: 100%;
  margin: auto 1em;
  text-align: center;
  font-size: 0.8em;
}

/*
  ========================= Main =========================
*/
main {
  margin: auto 1em;
}

h2,
h3 {
  color: #f00;
  margin: 2em auto 1em;
}

@media screen and (min-width: 55em) {
  body {
    width: 55em;
    margin-left: auto;
    margin-right: auto;
  }
}