body {
	font: 16px Arial, sans-serif;
	margin: 2em;
}
h1, a, a:visited {
	color: steelblue;
}
#formula {
	display: block;
	font-size: 2em;
	margin: 1.5em 0;
	text-align: center;
}
#formula {
	font-style: italic;
}
sup {
	font-size: 0.7em;
	vertical-align: 2ex;
}
a {
	margin: 1em;
	text-decoration: none;
}
a:hover {
	text-decoration: underline;
}
h2 {
	margin-top: 2em;
}
label {
	display: flex;
	gap: 0.5em;
}
#disc {
	border: 2px dashed steelblue;
	line-height: 1.5em;
	margin: 3em;
	padding: 0.8em;
	text-align: justify;
}
footer {
	align-items: center;
	border-top: 1px solid #000;
	display: flex;
	justify-content: space-between;
	margin-top: 1em;
	padding-top: 1.5em;
}
footer a, footer a:visited {
	color: inherit;
}
@media (max-width: 600px) {
  body { margin: 0.5em; }
  h1, #formula { font-size: 1.3em; }
  p a { display: list-item; margin-left: 2em; }
}