main {
	max-width: 80ch;
	margin: 0 auto;
}
textarea {
	display: block;
	width: 100%;
	resize: block;
	min-height: 100px;
}
table {
	border-collapse: collapse;
}
td, th {
	border: 1px solid;
	padding: 5px;
}
tbody tr:nth-of-type(2n + 1) {
	background-color: #eee;
}
table {
	border: 1px solid;
	width: 100%;
}
.error {
	color: red;
}