wp-calypso/client/layout/masterbar/masterbar-notifications/notifications-style.scss

.masterbar__item-notifications {
	margin-right: 12px;

	.masterbar__item-content {
		display: block;
	}

	.masterbar__item-notifications-label {
		display: none;
	}

	@include breakpoint-deprecated( "<480px" ) {
		margin-right: 0;
		margin-top: 0;

		&:active,
		&:hover,
		&:focus {
			color: var(--color-text-inverted);
		}
	}
}