html {
	background-color: #200000;
	color: white;
	animation: html 4s cubic-bezier(0.37, 0, 0.63, 1) infinite;
}
@keyframes html {
	0%,100% {
		background-color: #200000;
	}
	15% {
		background-color: #202000;
	}
	30% {
		background-color: #002000;
	}
	50% {
		background-color: #002020;
	}
	65% {
		background-color: #000020;
	}
	80% {
		background-color: #200020;
	}
}
table.upgrade-table button {
	background-color: #777;
	color: #eee;
	width: 150px;
	height: 100px;
	transition: transform 0.25s ease;
}
table.upgrade-table button:hover {
	transform: scale(1.1);
}
table.upgrade-table button:disabled {
	background-color: #555;
	color: #999;
	width: 150px;
	height: 100px;
}