.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}
main > form {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1em;
	width: max(50vmax, 30em);
	margin: 1em auto;
	padding: 1em;
}
main > form > h1 {
	grid-column: 1 / 3;
}
main > form > ul {
	grid-column: 1 / 3;
	list-style: none;
	padding: 1em;
}
main > form > label {
	text-align: right;
}
main > form > span {
	display: none;
}