:root {
	color-scheme: dark light;
}

.topnav {
	overflow: hidden;
	background-color: #333;
	position: sticky;
	width: 100%;
	top: 0;
	z-index: 99;
}
	
.topnav a {
	float: left;
	color: #f2f2f2;
	text-align: center;
	padding: 14px 16px;
	text-decoration: none;
	border: none;
}
	
.topnav a:hover {
    background-color: #ddd;
    color: black;
	cursor: pointer;
}
	
.topnav a.active {
	background-color: #046DAA;
	color: white;
}

.equation { 
	max-width: 100%;
	overflow-x: scroll;
}