wp-calypso/client/me/security-2fa-backup-codes/style.scss

.security-2fa-backup-codes .security-2fa-backup-codes-prompt {
	margin-top: 16px;
}

.banner.card{
	&.warning {
		border-left-color: var(--studio-red);

		.banner__icons {
			.banner__icon-circle {
				background-color: var(--studio-red);
			}
		}
	}
	&.success {
		border-left-color: var(--studio-green);

		.banner__icons {
			.banner__icon-circle {
				background-color: var(--studio-green);
			}
		}
	}
}