.content-link nro {
	color: #fff;
}
.content-link nro {
	position: relative;
	display: block;
	width: 1.6em;
	z-index: 0;
	font-weight: bold;
	text-align: center;
}
.content-link nro::before {
	content: '';
	position: absolute;
	top: -.4em;
	bottom: -.4em;
	left: 0;
	right: 0;
	z-index: -1;
	border-radius: 5px;
	background-color: var(--black);
}

.content-link.selected nro {
	color: var(--black);
}
.content-link.selected nro::before {
	background-color: #fff;
}

/***/
.close-extra-content {
	display: none;
}


/***/
.navigation-contents-link[data-a="0"] {
	margin-top: 1em;
}
.navigation-contents-link:last-child {
	margin-bottom: 1em;
}

/***/
nw{
	white-space: nowrap;
}