hedera-web/js/htk/assistant/style.scss

.htk-assistant > div {
	display: none;
	
	& > h2 {
		text-align: center;
		font-weight: normal;
		font-size: 1.5rem;
		margin: 0;
		padding: 0;
		margin-bottom: 1em;
		font-weight: bold;
	}
}