elpamplina_mastodon-threading/styles.css

.separator {
	width: 100%;
	text-align: center;
	border-bottom: 1px solid #ccc;
	overflow: inherit;
	margin: 0 0 30px;
	font-size: 16px;
	color: #222222;
}

.separator span {
	background: #ccc;
	padding: 0 5px 0 5px;
	position: relative;
	top: 10px;
	font-weight: bold;
}

.separator.warning span {
	background: red;
}

span.warning {
	color: red;
}