html,
body {
	height: 100%;
}

body {
	margin: 0;
	display: flex;
	flex-direction: column;
	align-items: flex-start;
}

textarea {
	flex-grow: 1;
	border: none;
	padding: 0.5rem;
	width: 100%;
	box-sizing: border-box;
}

textarea:focus {
	outline: none;
}

footer {
	border-top: 1px solid black;
	padding: 0.5rem;
	width: 100%;
}