#contentContainer {
	margin-top: calc(1rem + 0rem);
	margin-bottom: 6.5rem;
}

@media screen and (min-width: 768px) {
	#contentContainer {
		margin-top: calc(3.5rem + 0rem);
		margin-bottom: 3.5rem;
	}
}

#nav_bar {
	top: 0;
}

#main_nav ul ul {
	top: 100%;
}

#main_nav ul ul ul {
	top: 0;
}