header {
	background-color: $colorBg;
	border-bottom: 1px solid $colorHeader;
	box-shadow: 0 5px 5px $colorBg;
	left: 0;
	line-height: 3.5em;
	opacity: 0.975;
	position: fixed;
	right: 0;
	top: 0;
}

nav {
	margin: auto;
	max-width: 60em;
	padding: 0 4em;
	text-align: right;

	a {
		color: $colorText;
		padding: 0 1em;

		&:visited {
			color: $colorText;
		}
	}
}

@media (width <=684px) {
	header {
		box-shadow: none;
	}

	nav {
		padding: 0 2em;

		span {
			display: none;
		}
	}
}