wp-calypso/client/my-sites/people/subscribers/style.scss

.people-subscribers-list {
	padding: 0;
}

.people-list-section-header {
	.ellipsis-menu button {
		padding: 0;
		margin: 0;
	}
}

.add-subscriber .add-subscriber__form--container label.add-subscriber__form-label-emails {
	margin-top: 0;
}