body{
	margin: auto;
	padding: 0 1em;
	line-height: 1.6;
}
main {
	margin: 0 auto;
	max-width: 40em;
}
header, footer {
	max-width: 40em;
	margin: auto;
	text-align: center;
}
header {
	border-bottom: solid 0.1rem;
}
footer {
	border-top: solid 0.1rem;
}
nav ul {
	padding: 0;
}
nav li {
	display: inline-block;
	padding: 0 1em;
}
nav li:not(:last-of-type) {
	border-right: solid 0.1rem;
}
img {
	width: 100%;
}
a.mel {
	font-family: monospace;
}
.snowflake {
	border-left: solid 0.1rem;
	padding: 1rem;
	height: max-content;
	max-width: 320px;
	text-align: center;
}
.snowflake iframe {
	width: 320px;
	height: 240px;
	border: none;
}
.flex {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
}