wp-calypso/client/sites/settings/performance/form.scss

.cache-card {
	.hosting-card__description {
		margin: 0;
	}
}

.cache-card__button-wrapper {
	display: inline-block;
}

.cache-card__hr {
	margin-top: 30px;
	border-top: 1px solid #e0e0e0;
}

.cache-card__edge-cache-toggle {
	margin-bottom: 16px;
}

.cache-card__edge-cache-toggle label {
	font-size: 0.875rem;
	font-weight: 400;
	line-height: 20px;
}