body {
	font-family: sans-serif;
	font-size: 1.5rem;
}

img {
	max-width: 50vw;
	max-height: 25vw;
	display: block;
	margin: auto;
}

form {
	display: flex;
	justify-content: center;
	gap: 0.5em;
	flex-flow: row wrap;
	max-width: 40vw;
	margin: auto;
	align-items: baseline;
}

button[type='submit'] {
	padding: 5px 20px;
	margin: 10px auto;
	float: right;
}

#greeting {
	margin: 10px auto;
	padding: 10px 60px;
	border: 1px solid #222;
}

#greeting:empty {
	display: none;
}