body {
  font-family: Segoe UI, sans-serif;
  margin: 0;
  background: #f3f2f1;
  color: #323130;
}

main {
  max-width: 640px;
  margin: 15vh auto;
  padding: 24px;
  background: #fff;
  border: 1px solid #c8c6c4;
}