body {
	margin: 0;
	padding: 0;
}

header {
	position: fixed;
	top: 10px;
	left: 10px;
}

h1 {
	font-size: 1.5em;
	font-weight: bold;
	color: white;
	margin: 0;
	padding: 0;
}

h1 a {
	color: white;
	text-decoration: none;
}

.container {
	display: flex;
	flex-direction: row;
	height: 100vh;
}

.physics, .math {
	display: flex;
	flex-direction: column;
	flex-grow: 1;
	justify-content: center;
	align-items: center;
	font-size: 3em;
	font-weight: bold;
	color: white;
}

.physics {
	background-color: #0099CC;
}

.math {
	background-color: #FF6600;
}