wp-calypso/client/blocks/conversations/list.scss

.conversations__comment-list {
	cursor: initial; // override style from .card.is-clickable

	@include breakpoint-deprecated( "<660px" ) {
		margin: 0 16px;
	}
}

.conversations__comment-list-ul {
	list-style-type: none;
	margin-left: 0;
}

.conversations__comment-list-ul .comments__form-closed {
	border-top: 0;
	padding-top: 0;
	text-align: left;
}